8.8

CVE-2025-13943: zyxel am7510-00_firmware OS Command Injection

CVSS: 8.8v3.1HighAnalyzed
Published 24-02-2026Last modified 26-02-2026
Open JSON

Vulnerability summary

CVE-2025-13943 is a high (CVSS 8.8) OS Command Injection vulnerability in zyxel am7510-00_firmware. EPSS estimates a 1.45% chance of exploitation in the next 30 days, higher than 73% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
1.45%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 24-02-2026
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.45%

Chance of exploitation in the next 30 days

Percentile

73%

Versus all other CVEs

30-day change

+0.06 pp

From 1.40% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.45%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Zyxel53 products

1 vendor · 53 products

References

1 links