5.9
MEDIUM CVSS 4.0
CVE-2025-15367
POP3 command injection in user-controlled commands
Description

The poplib module, when passed a user-controlled command, can have additional commands injected using newlines. Mitigation rejects commands containing control characters.

INFO

Published Date :

Jan. 20, 2026, 10:15 p.m.

Last Modified :

Jan. 20, 2026, 10:15 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2025-15367 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.

No affected product recoded yet

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 4.0 MEDIUM 28c92f92-d60d-412d-b760-e73465c3df22
CVSS 4.0 MEDIUM [email protected]
Solution
Mitigate poplib command injection by rejecting commands with control characters.
  • Sanitize user input to remove control characters.
  • Validate all commands passed to poplib.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-15367.

URL Resource
https://github.com/python/cpython/issues/143923
https://github.com/python/cpython/pull/143924
https://mail.python.org/archives/list/[email protected]/thread/CBFBOWVGGUJFSGITQCCBZS4GEYYZ7ZNE/
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-15367 is associated with the following CWEs:

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).

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

The following list is the news that have been mention CVE-2025-15367 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-15367 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.

  • New CVE Received by [email protected]

    Jan. 20, 2026

    Action Type Old Value New Value
    Added Description The poplib module, when passed a user-controlled command, can have additional commands injected using newlines. Mitigation rejects commands containing control characters.
    Added CVSS V4.0 AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-77
    Added Reference https://github.com/python/cpython/issues/143923
    Added Reference https://github.com/python/cpython/pull/143924
    Added Reference https://mail.python.org/archives/list/[email protected]/thread/CBFBOWVGGUJFSGITQCCBZS4GEYYZ7ZNE/
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: 5.9
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
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SS Confidentiality
SS Integrity
SS Availability