CVE-2025-13258

HighPublic PoC

Published: 17 November 2025

Published

17 November 2025

Modified

19 November 2025

KEV Added

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Patch

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CVSS Score 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0041 61.1th percentile

Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Description

A vulnerability was detected in Tenda AC20 up to 16.03.08.12. The impacted element is an unknown function of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto results in buffer overflow. The attack can be launched remotely. The exploit is…

now public and may be used.

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match

prevent

SI-2 requires timely flaw remediation, directly mitigating this known buffer overflow by patching the Tenda AC20 firmware beyond version 16.03.08.12.

SI-10 Information Input Validation good match

prevent

SI-10 enforces information input validation, preventing the buffer overflow triggered by manipulating the wpapsk_crypto argument in /goform/WifiExtraSet.

SI-16 Memory Protection good match

prevent

SI-16 implements memory protection mechanisms such as stack canaries or ASLR, directly countering exploitation of the buffer overflow vulnerability.

Security SummaryAI

CVE-2025-13258 is a buffer overflow vulnerability (CWE-119, CWE-120) in Tenda AC20 routers up to version 16.03.08.12. The flaw affects an unknown function within the /goform/WifiExtraSet file, where manipulation of the wpapsk_crypto argument triggers the overflow. Published on 2025-11-17, it carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

The vulnerability enables remote exploitation by attackers with low privileges, requiring no user interaction. Successful exploitation can result in high impacts to confidentiality, integrity, and availability, such as arbitrary code execution on the affected router.

References point to a public GitHub proof-of-concept exploit detailing the Tenda AC20 WifiExtraSet buffer overflow, along with VulDB entries (ctiid.332593, id.332593, submit.688716) providing further vulnerability information. The exploit is now public and may be used.