CVE-2025-15255

A vulnerability was determined in Tenda W6-S 1.0.0.4(510). This impacts an unknown function of the file /bin/httpd of the component R7websSsecurityHandler. Executing a manipulation of the argument Cookie can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

• CWE-119
• CWE-121

• https://github.com/dwBruijn/CVEs/blob/main/Tenda/R7WebsSecurityHandler.mdExploit, Third Party Advisory
• https://vuldb.com/?ctiid.338645Permissions Required, VDB Entry
• https://vuldb.com/?id.338645Third Party Advisory, VDB Entry
• https://vuldb.com/?submit.725500Third Party Advisory, VDB Entry
• https://www.tenda.com.cn/Product
• https://github.com/dwBruijn/CVEs/blob/main/Tenda/R7WebsSecurityHandler.mdExploit, Third Party Advisory

Published

Dec 30, 2025

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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