CVE-2025-13943HIGH 8.8EPSS p67.7%

CVE-2025-13943CVE-2025-13943

Description

A post-authentication command injection vulnerability in the log file download function of the Zyxel EX3301-T0 firmware versions through 5.50(ABVY.7)C0 could allow an authenticated attacker to execute operating system (OS) commands on an affected device.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS1.34% probability of exploitation · percentile 67.7% · 2026-06-18T12:00:27Z
Published2026-02-24
Last modified2026-02-25

Underlying weaknesses· 1

CWE-78

References

  1. 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

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements used in an OS Command ('OS Command Injection')cwe-780%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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CVE-2025-8693
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CVE-2025-13942
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Zyxel Multiple Firewalls OS Command Injection Vulnerability
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Zyxel DSL CPE OS Command Injection Vulnerability
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CVE-2026-7256
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CVE-2025-0890
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.