What’s Vulnerable › Vulnerabilities

CVE-2025-15255: Tenda W6-S R7websSsecurityHandler httpd stack-based overflow

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-30 · updated 2026-06-17
• Weakness: CWE-119

Description

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.

Affected products

• Tenda W6-S: 1.0.0.4(510)

References

• https://github.com/dwBruijn/CVEs/blob/main/Tenda/R7WebsSecurityHandler.md
• https://vuldb.com/?ctiid.338645
• https://vuldb.com/?id.338645
• https://vuldb.com/?submit.725500
• https://www.tenda.com.cn/
• https://github.com/dwBruijn/CVEs/blob/main/Tenda/R7WebsSecurityHandler.md

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