CVE-2025-14656

HIGH 8.8

Tenda AC20 openSchedWifi httpd buffer overflow

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

A weakness has been identified in Tenda AC20 16.03.08.12. This affects the function httpd of the file /goform/openSchedWifi. Executing a manipulation of the argument schedStartTime/schedEndTime can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.

CWE	CWE-120 CWE-119
Vendor	tenda
Product	ac20
Published	Dec 14, 2025
Last Updated	Feb 24, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Tenda / AC20

16.03.08.12

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.336389 vuldb.com: https://vuldb.com/?ctiid.336389 vuldb.com: https://vuldb.com/?submit.712917 github.com: https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN14/AC20_openSchedWifi.md tenda.com.cn: https://www.tenda.com.cn/

Credits

🔍 jiahui2888 (VulDB User)