CVE-2025-11845
Zyxel VMG3625-T50B and WX3100-T0 Null Pointer Dereference Denial-of-Service Vulnerability
Description
A null pointer dereference vulnerability in the certificate downloader CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request.
INFO
Published Date :
Feb. 24, 2026, 2:15 a.m.
Last Modified :
Feb. 25, 2026, 6:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-11845
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.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 96e50032-ad0d-4058-a115-4d2c13821f9f | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Zyxel VMG3625-T50B firmware to version 5.50(ABPM.9.6)C0 or later.
- Update Zyxel WX3100-T0 firmware to version 5.50(ABVL.4.8)C0 or later.
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-2025-11845.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-11845 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-2025-11845
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-11845 vulnerability anywhere in the article.
-
Daily CyberSecurity
Total Takeover: Critical Zyxel Flaw (CVSS 9.8) Exposes Routers to Remote Command Injection
Networking giant Zyxel has rolled out a wave of urgent security patches addressing multiple vulnerabilities across its fleet of 4G LTE/5G NR CPEs, DSL/Ethernet routers, Fiber ONTs, and Wireless Extend ... Read more
The following table lists the changes that have been made to the
CVE-2025-11845 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.
-
Initial Analysis by [email protected]
Feb. 25, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte3301-plus_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00(abqu.9)c0 OR cpe:2.3:h:zyxel:lte3301-plus:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nebula_fwa505_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.60(acko.2)v0 OR cpe:2.3:h:zyxel:nebula_fwa505:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nebula_fwa510_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.60(acgd.0)c0 OR cpe:2.3:h:zyxel:nebula_fwa510:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nebula_fwa515_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.60(acpz.0)v0 OR cpe:2.3:h:zyxel:nebula_fwa515:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nebula_fwa710_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.60(acgc.1)v0 OR cpe:2.3:h:zyxel:nebula_fwa710:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ee5301-00_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.63(acld.2.1)c0 OR cpe:2.3:h:zyxel:ee5301-00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ee3301-00_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.63(acmu.2.1)c0 OR cpe:2.3:h:zyxel:ee3301-00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx5401-b1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abyo.7.1)c0 OR cpe:2.3:h:zyxel:dx5401-b1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx4510-b1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abyl.10.1)c0 OR cpe:2.3:h:zyxel:dx4510-b1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx4510-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abyl.10.1)c0 OR cpe:2.3:h:zyxel:dx4510-b0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx3301-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvy.7.1)c0 OR cpe:2.3:h:zyxel:dx3301-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx3300-t1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvy.7.1)c0 OR cpe:2.3:h:zyxel:dx3300-t1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx3300-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvy.7.1)c0 OR cpe:2.3:h:zyxel:dx3300-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nebula_lte3301-plus_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.18(acca.6)v0 OR cpe:2.3:h:zyxel:nebula_lte3301-plus:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ee6510-10_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.19(acjq.4.1)c0 OR cpe:2.3:h:zyxel:ee6510-10:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abpm.9.7)c0 OR cpe:2.3:h:zyxel:emg3525-t50b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abpm.9.7)c0 OR cpe:2.3:h:zyxel:emg5523-t50b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex2210-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(acdi.2.3)c0 OR cpe:2.3:h:zyxel:ex2210-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3300-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvy.7.1)c0 OR cpe:2.3:h:zyxel:ex3300-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3300-t1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvy.7.1)c0 OR cpe:2.3:h:zyxel:ex3300-t1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3301-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvy.7.1)c0 OR cpe:2.3:h:zyxel:ex3301-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3500-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.44(achr.5.1)c0 OR cpe:2.3:h:zyxel:ex3500-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3501-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.44(achr.5.1)c0 OR cpe:2.3:h:zyxel:ex3501-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3510-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abup.15.2)c0 OR cpe:2.3:h:zyxel:ex3510-b0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3510-b1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abup.15.2)c0 OR cpe:2.3:h:zyxel:ex3510-b1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3600-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.70(acif.2.1)c0 OR cpe:2.3:h:zyxel:ex3600-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5401-b1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abyo.7.1)c0 OR cpe:2.3:h:zyxel:ex5401-b1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5510-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abqx.11.1)c0 OR cpe:2.3:h:zyxel:ex5510-b0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5512-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.70(aceg.5.3)c0 OR cpe:2.3:h:zyxel:ex5512-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5601-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.70(acdz.5.1)c0 OR cpe:2.3:h:zyxel:ex5601-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5601-t1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.70(acdz.5.1)c0 OR cpe:2.3:h:zyxel:ex5601-t1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex7501-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.18(achn.3.1)c0 OR cpe:2.3:h:zyxel:ex7501-b0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex7710-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.18(acak.1.6)c0 OR cpe:2.3:h:zyxel:ex7710-b0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:gm4100-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.18(accl.2)c0 OR cpe:2.3:h:zyxel:gm4100-b0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pm7500-00_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.61(ackk.1.2)c0 OR cpe:2.3:h:zyxel:pm7500-00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abpm.9.7)c0 OR cpe:2.3:h:zyxel:vmg3625-t50b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg4005-b50a_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abqa.3.2)c0 OR cpe:2.3:h:zyxel:vmg4005-b50a:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg4005-b60a_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abqa.3.2)c0 OR cpe:2.3:h:zyxel:vmg4005-b60a:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ax7501-b1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abpc.7.1)c0 OR cpe:2.3:h:zyxel:ax7501-b1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pe3301-00_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.63(acmt.2.1)c0 OR cpe:2.3:h:zyxel:pe3301-00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pe5301-01_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.63(acoj.2.1)c0 OR cpe:2.3:h:zyxel:pe5301-01:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pm3100-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.42(acbf.4.1)c0 OR cpe:2.3:h:zyxel:pm3100-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pm5100-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.42(acbf.4.1)c0 OR cpe:2.3:h:zyxel:pm5100-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pm5100-t1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.42(acbf.4.1)c0 OR cpe:2.3:h:zyxel:pm5100-t1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pm7300-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.42(abyy.4.1)c0 OR cpe:2.3:h:zyxel:pm7300-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:px3321-t1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.44(achk.3)c0 OR cpe:2.3:h:zyxel:px3321-t1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:px3321-t1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.44(acjb.1.5)c0 OR cpe:2.3:h:zyxel:px3321-t1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:px5301-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.44(ackb.0.6)c0 OR cpe:2.3:h:zyxel:px5301-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:scr_50axe_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.30(acgn.0)c0 OR cpe:2.3:h:zyxel:scr_50axe:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg8623-t50b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abpm.9.7)c0 OR cpe:2.3:h:zyxel:vmg8623-t50b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:we3300-00_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.70(acka.1.1)c0 OR cpe:2.3:h:zyxel:we3300-00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:wx3100-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50(abvl.4.9)c0 OR cpe:2.3:h:zyxel:wx3100-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:wx3401-b1_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17(abve.2.10)c0 OR cpe:2.3:h:zyxel:wx3401-b1:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:wx5600-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.70(aceb.5.1)c0 OR cpe:2.3:h:zyxel:wx5600-t0:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:wx5610-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.18(acgj.0.5)c0 OR cpe:2.3:h:zyxel:wx5610-b0:-:*:*:*:*:*:*:* Added Reference Type Zyxel Corporation: https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-null-pointer-dereference-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-02-24-2026 Types: Vendor Advisory -
New CVE Received by [email protected]
Feb. 24, 2026
Action Type Old Value New Value Added Description A null pointer dereference vulnerability in the certificate downloader CGI program of the Zyxel VMG3625-T50B firmware versions through 5.50(ABPM.9.6)C0 and the Zyxel WX3100-T0 firmware versions through 5.50(ABVL.4.8)C0 could allow an authenticated attacker with administrator privileges to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request. Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added Reference https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-null-pointer-dereference-and-command-injection-vulnerabilities-in-certain-4g-lte-5g-nr-cpe-dsl-ethernet-cpe-fiber-onts-security-routers-and-wireless-extenders-02-24-2026