CVE-2026-0640

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

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

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

3.5% chance of exploitation in the next 30 days; higher than 89% of CVEs (scores of 2026-10-26)

CWEs

CWE-120, CWE-119

Published

2026-01-06

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• tenda:ac23_firmware

References

• https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow/Tenda%20AC23_Buffer_Overflow.md
• https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow/Tenda%20AC23_Buffer_Overflow.md#poc
• https://vuldb.com/?ctiid.339683
• https://vuldb.com/?id.339683
• https://vuldb.com/?submit.731772

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