What’s Vulnerable › Vulnerabilities

CVE-2026-0640: Tenda AC23 PowerSaveSet sscanf buffer overflow

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-06 · updated 2026-10-26
• Weakness: CWE-119

Description

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.

Affected products

• Tenda AC23: 16.03.07.52

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
• https://www.tenda.com.cn/

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