CVE-2025-31355

critical

Description

A firmware update vulnerability exists in the Firmware Signature Validation functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted malicious file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2025-2161

https://blog.talosintelligence.com/libbiosig-tenda-sail-pdf-xchange-foxit-vulnerabilities/

https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2161

Details

Source: Mitre, NVD

Published: 2025-08-20

Updated: 2025-11-03

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00031