🛡️ CVE-2025-10120 — ac20-firmware

🟠 CVSS 8.8 — High ⚠️ Exploit Public CWE-119 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A vulnerability was detected in Tenda AC20 up to 16.03.08.12. The impacted element is the function strcpy of the file /goform/GetParentControlInfo. The manipulation of the argument mac results in buffer overflow. The attack may be performed from remote. The exploit is now public and may be used.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2025-10120 is classified as CWE-119: Improper Restriction of Operations within Memory Buffer Bounds. A read or write is performed without confirming it stays inside the allocated buffer, corrupting adjacent memory.

Affected software

CVE-2025-10120 is recorded against 1 package.

  • ac20-firmware (fixed in 16.03.08.12)

Timeline and source

Published on 9 September 2025 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

github.com
github.com
vuldb.com
vuldb.com
vuldb.com
www.tenda.com.cn
github.com

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-119
Public Exploit ⚠️ Yes
Source NVD
Published 2025-09-09
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
ac20-firmware 16.03.08.12

References

Exploit, Third Party Advisory https://github.com/cymiao1978/cve/blob/main/4.md
Permissions Required https://vuldb.com/?ctiid.323089
Third Party Advisory, VDB Entry https://vuldb.com/?id.323089
Third Party Advisory, VDB Entry https://vuldb.com/?submit.645680
Exploit, Third Party Advisory https://github.com/cymiao1978/cve/blob/main/4.md

Similar Threats

Exploit Protection

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