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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.00268.

Exploitation poc

Automatable yes

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Tenda W6-S affected
Version Status Constraints
1.0.0.4(510) affected —

Configuration 1 [-]

AND
cpe:2.3:o:tenda:w6-s_firmware:1.0.0.4\(510\):*:*:*:*:*:*:*
cpe:2.3:h:tenda:w6-s:-:*:*:*:*:*:*:*

No data.

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Vendors Products
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W6-s Subscribe

Project Subscriptions

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W6-s Subscribe
W6-s Firmware Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/dwBruijn/CVEs/blob/main/Tenda/R7WebsSecurityHandler.md cve-icon cve-icon cve-icon
https://vuldb.com/?ctiid.338645 cve-icon cve-icon
https://vuldb.com/?id.338645 cve-icon cve-icon
https://vuldb.com/?submit.725500 cve-icon cve-icon
https://www.tenda.com.cn/ cve-icon cve-icon
History

Tue, 24 Feb 2026 06:45:00 +0000

Type Values Removed Values Added
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 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. 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.
CPEs cpe:2.3:o:tenda:w6-s_firmware:*:*:*:*:*:*:*:*

Fri, 02 Jan 2026 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Tenda
Tenda w6-s
Tenda w6-s Firmware
CPEs cpe:2.3:h:tenda:w6-s:-:*:*:*:*:*:*:*
cpe:2.3:o:tenda:w6-s_firmware:1.0.0.4\(510\):*:*:*:*:*:*:*
Vendors & Products Tenda
Tenda w6-s
Tenda w6-s Firmware

Tue, 30 Dec 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 30 Dec 2025 16:15:00 +0000

Type Values Removed Values Added
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 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.
Title Tenda W6-S R7websSsecurityHandler httpd stack-based overflow
Weaknesses CWE-119
CWE-121
References
Metrics cvssV2_0

{'score': 10, 'vector': 'AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 9.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-02-24T06:17:51.072Z

Reserved: 2025-12-29T09:20:17.378Z

Link: CVE-2025-15255

cve-icon Vulnrichment

Updated: 2025-12-30T18:11:11.092Z

cve-icon NVD

Status : Modified

Published: 2025-12-30T16:15:44.423

Modified: 2026-02-24T07:17:07.100

Link: CVE-2025-15255

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-05T10:19:45Z

Weaknesses