CVE-2025-13943
CVSS v3
8.8
HIGH
EPSS Score
1.4 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2026-02-24
- Last Modified
- 2026-02-25
Frequently asked questions
What is CVE-2025-13943?
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.
Is CVE-2025-13943 actively exploited?
Active exploitation of CVE-2025-13943 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2025-13943?
CVE-2025-13943 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2025-13943 affecting your environment?
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