🛡️ CVE-2022-26414 — ax7501-b0-firmware

🟡 CVSS 6.0 — Medium ✅ No Known Exploit CWE-120 NVD
6.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A potential buffer overflow vulnerability was identified in some internal functions of Zyxel VMG3312-T20A firmware version 5.30(ABFX.5)C0, which could be exploited by a local authenticated attacker to cause a denial of service.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs administrative privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability high.

Weakness class

CVE-2022-26414 is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.

Affected software

CVE-2022-26414 is recorded against 32 packages.

  • ax7501-b0-firmware (fixed in 5.17\(abpc.1\)c0)
  • dx5401-b0-firmware (fixed in 5.17\(abyo.1\)c0)
  • emg3525-t50b-firmware (fixed in 5.50\(abpm.6\)c0)
  • emg5523-t50b-firmware (fixed in 5.50\(abpm.6\)c0)
  • emg5723-t50k-firmware (fixed in 5.50\(abom.7\)c0)
  • emg6726-b10a-firmware (fixed in 5.13\(abnp.7\)c0)
  • ep240p-firmware (fixed in 5.40\(abh.0\)c0)
  • ex3510-b0-firmware (fixed in 5.17\(abup.4\)c1)
  • ex5401-b0-firmware (fixed in 5.17\(abyo.1\)c0)
  • ex5501-b0-firmware (fixed in 5.17\(abry.2\)c0)
  • pm7300-t0-firmware (fixed in 5.42\(acbc.1\)c0)
  • pmg5317-t20b-firmware (fixed in 5.40\(abki.4\)c0)
  • pmg5617-t20b2-firmware (fixed in 5.41\(acbb.1\)c0)
  • pmg5617ga-firmware (fixed in 5.40\(abna.2\)c0)
  • pmg5622ga-firmware (fixed in 5.40\(abnb.2\)c0)
  • px7501-b0-firmware (fixed in 5.17\(abpc.1\)c0)
  • vmg1312-t20b-firmware (fixed in 5.50\(absb.5\)c0)
  • vmg3312-t20a-firmware
  • vmg3625-t50b-firmware (fixed in 5.50\(abpm.6\)c0)
  • vmg3927-b50a-firmware (fixed in 5.17\(abmt.6\)c0)
  • vmg3927-b50b-firmware (fixed in 5.13\(ably.7\)c0)
  • vmg3927-b60a-firmware (fixed in 5.17\(abmt.6\)c0)
  • vmg3927-t50k-firmware (fixed in 5.50\(abom.7\)c0)
  • vmg4927-b50a-firmware (fixed in 5.13\(ably.7\)c0)
Show the remaining 8 packages
  • vmg8623-t50b-firmware (fixed in 5.50\(abpm.6\)c0)
  • vmg8825-b50a-firmware (fixed in 5.17\(abmt.6\)c0)
  • vmg8825-b50b-firmware (fixed in 5.17\(abny.7\)c0)
  • vmg8825-b60a-firmware (fixed in 5.17\(abmt.6\)c0)
  • vmg8825-b60b-firmware (fixed in 5.17\(abny.7\)c0)
  • vmg8825-t50k-firmware (fixed in 5.50\(abom.7\)c0)
  • xmg3927-b50a-firmware (fixed in 5.17\(abmt.6\)c0)
  • xmg8825-b50a-firmware (fixed in 5.17\(abmt.6\)c0)

Timeline and source

Published on 11 April 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.zyxel.com
www.zyxel.com

Details

Severity MEDIUM
CVSS Score 6.0
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CWE CWE-120
Public Exploit ✅ No
Source NVD
Published 2022-04-11
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
ax7501-b0-firmware 5.17\(abpc.1\)c0
dx5401-b0-firmware 5.17\(abyo.1\)c0
emg3525-t50b-firmware 5.50\(abpm.6\)c0
emg5523-t50b-firmware 5.50\(abpm.6\)c0
emg5723-t50k-firmware 5.50\(abom.7\)c0
emg6726-b10a-firmware 5.13\(abnp.7\)c0
ep240p-firmware 5.40\(abh.0\)c0
ex3510-b0-firmware 5.17\(abup.4\)c1
ex5401-b0-firmware 5.17\(abyo.1\)c0
ex5501-b0-firmware 5.17\(abry.2\)c0
pm7300-t0-firmware 5.42\(acbc.1\)c0
pmg5317-t20b-firmware 5.40\(abki.4\)c0
pmg5617-t20b2-firmware 5.41\(acbb.1\)c0
pmg5617ga-firmware 5.40\(abna.2\)c0
pmg5622ga-firmware 5.40\(abnb.2\)c0
px7501-b0-firmware 5.17\(abpc.1\)c0
vmg1312-t20b-firmware 5.50\(absb.5\)c0
vmg3312-t20a-firmware
vmg3625-t50b-firmware 5.50\(abpm.6\)c0
vmg3927-b50a-firmware 5.17\(abmt.6\)c0
vmg3927-b50b-firmware 5.13\(ably.7\)c0
vmg3927-b60a-firmware 5.17\(abmt.6\)c0
vmg3927-t50k-firmware 5.50\(abom.7\)c0
vmg4927-b50a-firmware 5.13\(ably.7\)c0
vmg8623-t50b-firmware 5.50\(abpm.6\)c0
vmg8825-b50a-firmware 5.17\(abmt.6\)c0
vmg8825-b50b-firmware 5.17\(abny.7\)c0
vmg8825-b60a-firmware 5.17\(abmt.6\)c0
vmg8825-b60b-firmware 5.17\(abny.7\)c0
vmg8825-t50k-firmware 5.50\(abom.7\)c0
xmg3927-b50a-firmware 5.17\(abmt.6\)c0
xmg8825-b50a-firmware 5.17\(abmt.6\)c0

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