CVE-2025-14655

A security flaw has been discovered in Tenda AC20 16.03.08.12. The impacted element is the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd. Performing a manipulation of the argument rebootTime results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.

CVSS 4.0

7.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

CVSS 3.1

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

EPSS

3.3% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-25)

CWEs

CWE-787, CWE-119, CWE-121

Published

2025-12-14

Modified

2026-10-07

Record from

the NVD, synced 2026-10-19

Affected

• tenda:ac20_firmware

References

• https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN13/AC20_SetSysAutoRebbotCfg.md
• https://vuldb.com/?ctiid.336388
• https://vuldb.com/?id.336388
• https://vuldb.com/?submit.712910
• https://www.tenda.com.cn/

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