Known Exploited Vulnerability
10.0
CRITICAL CVSS 3.1
CVE-2025-55182
Meta React Server Components Remote Code Execution Vulnerability - [Actively Exploited]
Description

A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.

INFO

Published Date :

Dec. 3, 2025, 4:15 p.m.

Last Modified :

Dec. 6, 2025, 2 a.m.

Remotely Exploit :

No
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Meta React Server Components contains a remote code execution vulnerability that could allow unauthenticated remote code execution by exploiting a flaw in how React decodes payloads sent to React Server Function endpoints.

Required Action :

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes :

https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components ; https://nvd.nist.gov/vuln/detail/CVE-2025-55182

Affected Products

The following products are affected by CVE-2025-55182 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Vercel next.js
1 Facebook react
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL 4fc57720-52fe-4431-a0fb-3d2c8747b827
CVSS 3.1 CRITICAL [email protected]
CVSS 3.1 CRITICAL MITRE-CVE
Solution
Update React Server Components to a patched version to fix unsafe deserialization.
  • Update React Server Components to a secure version.
  • Remove vulnerable packages like react-server-dom-parcel.
  • Apply security patches for affected packages.
  • Validate server function endpoint security.
Public PoC/Exploit Available at Github

CVE-2025-55182 has a 600 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-55182 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-55182 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

A powerful Go-based tool for automating bug bounty report emails. This tool processes markdown files, extracts target domains, finds email addresses, and sends beautifully formatted HTML emails to recipients.

Go

Updated: 5 hours, 16 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 3:47 p.m. This repo has been linked 1 different CVEs too.

This repository serves as a centralized collection of custom exploits, proof-of-concept (PoC) code, and offensive security tools I have developed. It is maintained for ethical hacking demonstrations.

cybersecurity exploit metasploit metasploit-framework redteam ruby

Ruby

Updated: 5 hours, 8 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 2:56 p.m. This repo has been linked 1 different CVEs too.

None

Shell

Updated: 6 hours, 31 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 1:54 p.m. This repo has been linked 1 different CVEs too.

None

JavaScript CSS

Updated: 8 hours, 57 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 11:38 a.m. This repo has been linked 1 different CVEs too.

None

JavaScript

Updated: 10 hours, 33 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 10:32 a.m. This repo has been linked 2 different CVEs too.

cve-2025-55182

Python

Updated: 11 hours, 47 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 8:56 a.m. This repo has been linked 1 different CVEs too.

None

Dockerfile JavaScript

Updated: 12 hours, 40 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 8:23 a.m. This repo has been linked 1 different CVEs too.

None

Python CSS TypeScript JavaScript

Updated: 11 hours, 43 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 8:03 a.m. This repo has been linked 1 different CVEs too.

This project provides a fully functional demonstration of CVE-2025-55182 (React2Shell) - a critical Remote Code Execution vulnerability in React Server Components and Next.js.

TypeScript CSS JavaScript Go

Updated: 7 hours, 35 minutes ago
1 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 7:35 a.m. This repo has been linked 1 different CVEs too.

None

JavaScript TypeScript CSS

Updated: 16 hours, 16 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 4 a.m. This repo has been linked 2 different CVEs too.

None

Python Dockerfile

Updated: 17 hours, 9 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 3:36 a.m. This repo has been linked 2 different CVEs too.

None

TypeScript JavaScript

Updated: 17 hours, 33 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 2:48 a.m. This repo has been linked 2 different CVEs too.

None

Dockerfile Python HTML JavaScript CSS

Updated: 14 hours, 57 minutes ago
1 stars 0 fork 0 watcher
Born at : Dec. 15, 2025, 12:50 a.m. This repo has been linked 1 different CVEs too.

Next.Js React Server Components (RSC) Vulnerabilities

code-disclosure cve-2025-55182 cve-2025-55183 cve-2025-55184 dos nextjs rce react rsc exploit poc react-server-components

Python Dockerfile TypeScript

Updated: 17 hours, 28 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 14, 2025, 5:18 p.m. This repo has been linked 3 different CVEs too.

None

Python

Updated: 19 hours, 24 minutes ago
0 stars 0 fork 0 watcher
Born at : Dec. 14, 2025, 3:16 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-55182 vulnerability anywhere in the article.

  • CybersecurityNews
ZnDoor Malware Exploiting React2Shell Vulnerability to Compromise Network Devices

Since December 2025, a concerning trend has emerged across Japanese organizations as attackers exploit a critical vulnerability in React/Next.js applications. The vulnerability, tracked as CVE-2025-55 ... Read more

Published Date: Dec 15, 2025 (2 hours, 23 minutes ago)
  • The Register
China, Iran are having a field day with React2Shell, Google warns

At least five more Chinese spy crews, Iran-linked goons, and financially motivated criminals are now attacking the React2Shell, a maximum-severity flaw in the widely used React JavaScript library, acc ... Read more

Published Date: Dec 15, 2025 (3 hours, 13 minutes ago)
  • hackread.com
GitHub Scanner for React2Shell (CVE-2025-55182) Turns Out to Be Malware

A GitHub repository posing as a vulnerability scanner for CVE-2025-55182, also referred to as “React2Shell,” was exposed as malicious after spreading malware. The project, named React2shell-scanner, w ... Read more

Published Date: Dec 15, 2025 (4 hours, 32 minutes ago)
  • BleepingComputer
Google links more Chinese hacking groups to React2Shell attacks

​Over the weekend, ​Google's threat intelligence team linked five more Chinese hacking groups to attacks exploiting the maximum-severity "React2Shell" remote code execution vulnerability. Tracked as C ... Read more

Published Date: Dec 15, 2025 (8 hours, 20 minutes ago)
  • hackread.com
Critical React2Shell Vulnerability (CVE-2025-55182) Analysis: Surge in Attacks Targeting RSC-Enabled Services Worldwide

Torrance, United States / California, December 12th, 2025, CyberNewsWire In December 2025, CVE-2025-55182 (React2Shell), a vulnerability in React Server Components (RSC) that enables remote code execu ... Read more

Published Date: Dec 15, 2025 (11 hours, 22 minutes ago)
  • CybersecurityNews
Cybersecurity News Weekly Newsletter – Windows, Chrome, and Apple 0-days, Kali Linux 2025.4, and MITRE Top 25

As 2025 nears its close, the cybersecurity landscape shows no signs of slowing down. This week’s developments highlight how rapidly the threat environment continues to evolve with major zero-day vulne ... Read more

Published Date: Dec 14, 2025 (1 day, 6 hours ago)
  • CybersecurityNews
Google Warns Multiple Hacker Groups Are Exploiting React2Shell to Spread Malware

Google Threat Intelligence Group (GTIG) has issued a warning regarding the widespread exploitation of a critical security flaw in React Server Components. Known as React2Shell (CVE-2025-55182), this v ... Read more

Published Date: Dec 13, 2025 (2 days, 7 hours ago)
  • Daily CyberSecurity
React2Shell: Max-Score RCE (CVSS 10.0) Triggers Widespread Exploitation by Espionage Groups & Miners

The cybersecurity landscape was jolted this month by the disclosure of a catastrophic vulnerability in one of the world’s most popular web development frameworks. Dubbed “React2Shell,” the flaw has tr ... Read more

Published Date: Dec 13, 2025 (2 days, 12 hours ago)
  • The Register
New React vulns leak secrets, invite DoS attacks

If you're running React Server Components, you just can't catch a break. In addition to already-reported flaws, newly discovered bugs allow attackers to hang vulnerable servers and potentially leak Se ... Read more

Published Date: Dec 12, 2025 (3 days, 2 hours ago)
  • CybersecurityNews
Critical React2Shell Vulnerability (CVE-2025-55182) Analysis: Surge in Attacks Targeting RSC-Enabled Services Worldwide

Torrance, United States / California, December 12th, 2025, CyberNewsWire In December 2025, CVE-2025-55182 (React2Shell), a vulnerability in React Server Components (RSC) that enables remote code execu ... Read more

Published Date: Dec 12, 2025 (3 days, 5 hours ago)
  • Daily CyberSecurity
Critical React2Shell Vulnerability (CVE-2025-55182) Analysis: Surge in Attacks Targeting RSC-Enabled Services Worldwide

Torrance, United States / California, December 12th, 2025, CyberNewsWire In December 2025, CVE-2025-55182 (React2Shell), a vulnerability in React Server Components (RSC) that enables remote code execu ... Read more

Published Date: Dec 12, 2025 (3 days, 6 hours ago)
  • Google Cloud
Multiple Threat Actors Exploit React2Shell (CVE-2025-55182)

Written by: Aragorn Tseng, Robert Weiner, Casey Charrier, Zander Work, Genevieve Stark, Austin Larsen Introduction On Dec. 3, 2025, a critical unauthenticated remote code execution (RCE) vulnerability ... Read more

Published Date: Dec 12, 2025 (3 days, 7 hours ago)
  • CybersecurityNews
Top 20 Most Exploited Vulnerabilities of 2025: A Comprehensive Analysis

The cybersecurity landscape of 2025 has been marked by an unprecedented surge in vulnerability exploitation, with threat actors leveraging critical flaws across enterprise software, cloud infrastructu ... Read more

Published Date: Dec 12, 2025 (3 days, 7 hours ago)
  • security.nl
Nieuwe React-kwetsbaarheden leiden tot denial of service en broncode-lek

Onderzoekers hebben nieuwe kwetsbaarheden in React Server Components ontdekt waardoor aanvallers een denial of service kunnen veroorzaken of broncode stelen. Er zijn updates beschikbaar gesteld en Rea ... Read more

Published Date: Dec 12, 2025 (3 days, 8 hours ago)
  • The Register
Half of exposed React servers remain unpatched amid active exploitation

Half of the internet-facing systems vulnerable to a fast-moving React remote code execution flaw remain unpatched, even as exploitation has exploded into more than a dozen active attack clusters rangi ... Read more

Published Date: Dec 12, 2025 (3 days, 9 hours ago)
  • The Hacker News
New React RSC Vulnerabilities Enable DoS and Source Code Exposure

Dec 12, 2025Ravie LakshmananSoftware Security / Vulnerability The React team has released fixes for two new types of flaws in React Server Components (RSC) that, if successfully exploited, could res ... Read more

Published Date: Dec 12, 2025 (3 days, 12 hours ago)
  • Daily CyberSecurity
React Patches Two New Flaws Risking Server-Crashing DoS and Source Code Disclosure

The security saga surrounding React Server Components continues this week. Just days after the React team patched a critical remote code execution (RCE) flaw, security researchers digging into those v ... Read more

Published Date: Dec 12, 2025 (3 days, 17 hours ago)
  • The Cloudflare Blog
React2Shell and related RSC vulnerabilities threat brief: early exploitation activity and threat actor techniques

2025-12-117 min readOn December 3, 2025, immediately following the public disclosure of the critical, maximum-severity React2Shell vulnerability (CVE-2025-55182), the Cloudforce One Threat Intelligenc ... Read more

Published Date: Dec 11, 2025 (4 days, 4 hours ago)
  • The Hacker News
ThreatsDay Bulletin: Spyware Alerts, Mirai Strikes, Docker Leaks, ValleyRAT Rootkit — and 20 More Stories

This week's cyber stories show how fast the online world can turn risky. Hackers are sneaking malware into movie downloads, browser add-ons, and even software updates people trust. Tech giants and gov ... Read more

Published Date: Dec 11, 2025 (4 days, 7 hours ago)
  • Kaspersky
It didn’t take long: CVE-2025-55182 is now under active exploitation

On December 4, 2025, researchers published details on the critical vulnerability CVE-2025-55182, which received a CVSS score of 10.0. It has been unofficially dubbed React4Shell, as it affects React S ... Read more

Published Date: Dec 11, 2025 (4 days, 13 hours ago)

The following table lists the changes that have been made to the CVE-2025-55182 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Dec. 06, 2025

    Action Type Old Value New Value
    Added Date Added 2025-12-05
    Added Due Date 2025-12-26
    Added Required Action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
    Added Vulnerability Name Meta React Server Components Remote Code Execution Vulnerability
  • Initial Analysis by [email protected]

    Dec. 05, 2025

    Action Type Old Value New Value
    Added CWE CWE-502
    Added CPE Configuration OR *cpe:2.3:a:facebook:react:19.0.0:*:*:*:*:*:*:* *cpe:2.3:a:facebook:react:19.1.0:*:*:*:*:*:*:* *cpe:2.3:a:facebook:react:19.1.1:*:*:*:*:*:*:* *cpe:2.3:a:facebook:react:19.2.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.0.0 up to (excluding) 15.0.5 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.1.0 up to (excluding) 15.1.9 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.2.0 up to (excluding) 15.2.6 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.3.0 up to (excluding) 15.3.6 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.4.0 up to (excluding) 15.4.8 *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 15.5.0 up to (excluding) 15.5.7 *cpe:2.3:a:vercel:next.js:15.6.0:-:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary0:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary1:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary10:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary11:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary12:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary13:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary14:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary15:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary16:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary17:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* versions from (including) 16.0.0 up to (excluding) 16.0.7 *cpe:2.3:a:vercel:next.js:15.6.0:canary18:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary19:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary2:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary20:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary21:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary22:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary23:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary24:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary25:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary26:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary27:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary28:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary29:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary3:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary30:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary31:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary32:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary33:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary34:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary35:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary36:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary37:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary38:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary39:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary4:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary40:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary41:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary42:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary43:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary44:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary45:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary46:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary47:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary48:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary49:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary5:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary50:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary51:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary52:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary53:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary54:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary55:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary56:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary57:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary6:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary7:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary8:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:15.6.0:canary9:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:16.0.0:-:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:14.3.0:canary77:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:14.3.0:canary78:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:14.3.0:canary79:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:14.3.0:canary80:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:14.3.0:canary81:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:14.3.0:canary82:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:14.3.0:canary83:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:14.3.0:canary84:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:14.3.0:canary85:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:14.3.0:canary86:*:*:*:node.js:*:* *cpe:2.3:a:vercel:next.js:14.3.0:canary87:*:*:*:node.js:*:*
    Added Reference Type Facebook, Inc.: https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components Types: Patch, Vendor Advisory
    Added Reference Type Facebook, Inc.: https://www.facebook.com/security/advisories/cve-2025-55182 Types: Vendor Advisory
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55182 Types: US Government Resource
    Added Reference Type CISA-ADP: https://aws.amazon.com/blogs/security/china-nexus-cyber-threat-groups-rapidly-exploit-react2shell-vulnerability-cve-2025-55182/ Types: Third Party Advisory
    Added Reference Type CVE: https://news.ycombinator.com/item?id=46136026 Types: Issue Tracking
    Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2025/12/03/4 Types: Mailing List, Patch, Third Party Advisory
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Dec. 05, 2025

    Action Type Old Value New Value
    Added Reference https://aws.amazon.com/blogs/security/china-nexus-cyber-threat-groups-rapidly-exploit-react2shell-vulnerability-cve-2025-55182/
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-55182
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Dec. 04, 2025

    Action Type Old Value New Value
    Removed Reference https://github.com/ejpir/CVE-2025-55182-poc
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Dec. 04, 2025

    Action Type Old Value New Value
    Added Reference https://github.com/ejpir/CVE-2025-55182-poc
    Added Reference https://news.ycombinator.com/item?id=46136026
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Dec. 03, 2025

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2025/12/03/4
  • New CVE Received by [email protected]

    Dec. 03, 2025

    Action Type Old Value New Value
    Added Description A pre-authentication remote code execution vulnerability exists in React Server Components versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 including the following packages: react-server-dom-parcel, react-server-dom-turbopack, and react-server-dom-webpack. The vulnerable code unsafely deserializes payloads from HTTP requests to Server Function endpoints.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    Added Reference https://react.dev/blog/2025/12/03/critical-security-vulnerability-in-react-server-components
    Added Reference https://www.facebook.com/security/advisories/cve-2025-55182
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 10
Attack Vector
Attack Complexity
Privileges Required
User Interaction
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