VulnerabilityModified

CVE-2025-31355

A firmware update vulnerability exists in the Firmware Signature Validation functionality of Tenda AC6 V5.0 V02.03.01.110.

CRITICAL 9.8EPSS 0.30%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.30% probability · 23th percentile
CISA KEV: Not listed
Weakness: CWE-494
Affected: tenda/ac6 firmware
Source: talos-cna@cisco.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.