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CVE-2026-0640

Tenda AC23 PowerSaveSet sscanf buffer overflow

CVSS 8.7 HIGHEPSS 3.0%CWE-119CWE-120
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 8.7EPSS 3.0%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
06 Jan 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A weakness has been identified in Tenda AC23 16.03.07.52. This affects the function sscanf of the file /goform/PowerSaveSet. Executing a manipulation of the argument Time can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.
CVSS: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
Affected products
Tenda · AC23

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References
https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow/Tenda%20AC23_Buffer_Overflow.mdhttps://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow/Tenda%20AC23_Buffer_Overflow.md#pochttps://vuldb.com/?ctiid.339683https://vuldb.com/?id.339683https://vuldb.com/?submit.731772https://www.tenda.com.cn/