What’s Vulnerable › Vulnerabilities

CVE-2025-10838: Tenda AC21 WifiExtraSet sub_45BB10 buffer overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-09-23 · updated 2026-10-11
• Weakness: CWE-119

Description

A vulnerability was identified in Tenda AC21 16.03.08.16. The affected element is the function sub_45BB10 of the file /goform/WifiExtraSet. The manipulation of the argument wpapsk_crypto leads to buffer overflow. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.

Affected products

• Tenda AC21: through 16.03.08.16

References

• https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC21/Tenda%20AC21%20Buffer%20overflow.md
• https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC21/Tenda%20AC21%20Buffer%20overflow.md#poc
• https://vuldb.com/?ctiid.325200
• https://vuldb.com/?id.325200
• https://vuldb.com/?submit.657126
• https://www.tenda.com.cn/

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