PT-2025-53720 · Tenda · Tenda W6-S

Dwbruijn · Published 2025-12-29 · Updated 2026-01-08 · CVE-2025-15255

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Tenda W6-S version 1.0.0.4(510)

Description A stack-based buffer overflow exists in the R7websSsecurityHandler component of Tenda W6-S. The issue is located in the file /bin/httpd. Manipulation of the Cookie argument can trigger the overflow. The attack can be launched remotely. A public exploit is available.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

CVE-2025-15255

Affected Products

Tenda W6-S

References · 13

• 🔥 https://github.com/dwBruijn/CVEs/blob/main/Tenda/R7WebsSecurityHandler.md · Exploit
• https://osv.dev/vulnerability/CVE-2025-15255 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-15255 · Security Note
• https://twitter.com/CveFindCom/status/2006042451383898617 · Twitter Post
• https://t.me/CVEtracker/40959 · Telegram Post
• https://twitter.com/vuldb/status/2009224632688365684 · Twitter Post
• https://vuldb.com/?id.338645 · Note
• https://vuldb.com/?submit.725500 · Note
• https://twitter.com/CVEnew/status/2006132926908408260 · Twitter Post
• https://vuldb.com/?ctiid.338645 · Note
• https://tenda.com.cn · Note
• https://twitter.com/0dayPublishing/status/2006035260908212459 · Twitter Post
• https://twitter.com/vuldb/status/2005591666913333407 · Twitter Post