TI-2025-13932 Aliases CVE-2025-15255 GHSA-pw2q-c8xj-w9fw

Tenda W6-S R7websSsecurityHandler httpd stack-based overflow

HIGH 81CWE-119Published 2025-12-30 · Updated 2026-02-24

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.04652 91st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA and NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Tenda	W6-S	1.0.0.4(510)	—	No fix listed	CNA

W6-S VendorTenda Affected 1.0.0.4(510) Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:tenda:w6-s_firmware:1.0.0.4\(510\):::::::*	1.0.0.4(510)	Vulnerable	Tenda
cpe:2.3:h:tenda:w6-s:-:::::::*	not specified by NVD	Running on	Tenda

cpe:2.3:o:tenda:w6-s_firmware:1.0.0.4\(510\):*:*:*:*:*:*:* Versions 1.0.0.4(510) Vulnerable ·Tenda
cpe:2.3:h:tenda:w6-s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-15255
2026-10-03 Alias added: GHSA-pw2q-c8xj-w9fw

References

Exploit 1

https://github.com/dwBruijn/CVEs/blob/main/Tenda/R7WebsSecurityHandler.md

Other 1

https://www.tenda.com.cn/

TI-2022-22448 Tenda W6-S v1.0.0.4(510) was discovered to contain a command injection vulnerability in… CVSS 3.1CRITICAL 9.8
TI-2022-22453 An issue in the component tpi_systool_handle(0) (/goform/SysToolRestoreSet) of Tenda W6-S… CVSS 3.1HIGH 7.5
TI-2022-22452 Tenda W6-S v1.0.0.4(510) was discovered to contain a stack overflow via the linkEn parameter at /goform/setAutoPing. CVSS 3.1HIGH 7.5
TI-2022-22451 Tenda W6-S v1.0.0.4(510) was discovered to contain a stack overflow via the wl_radio parameter at /goform/wifiSSIDset. CVSS 3.1HIGH 7.5
TI-2022-22450 Tenda W6-S v1.0.0.4(510) was discovered to contain a stack overflow via the wl_radio… CVSS 3.1HIGH 7.5
TI-2022-22449 An issue in the component tpi_systool_handle(0) (/goform/SysToolReboot) of Tenda W6-S… CVSS 3.1HIGH 7.5

See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences