CVE-2026-2877: Tenda A18 Httpd Service WifiExtraSet strcpy stack-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-21 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability has been found in Tenda A18 15.13.07.13. This affects the function strcpy of the file /goform/WifiExtraSet of the component Httpd Service. The manipulation of the argument wpapsk_crypto5g leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Affected products

Tenda A18: 15.13.07.13

References

https://github.com/master-abc/cve/issues/39
https://vuldb.com/?ctiid.347130
https://vuldb.com/?id.347130
https://vuldb.com/?submit.754703
https://www.tenda.com.cn/

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