CVE-2026-24115

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Failure to validate the sizes of `gstup` and `gstdwn` before concatenating them into `gstruleQos` may lead to buffer overflow.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2026-24115	Exploit Third Party Advisory
https://www.tenda.com.cn/material/show/2707	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tenda:w20e_firmware:15.11.0.6:*:*:*:*:*:*:*

cpe:2.3:h:tenda:w20e:4.0:*:*:*:*:*:*:*

History

03 Mar 2026, 15:52

Type	Values Removed	Values Added
CPE		cpe:2.3:h:tenda:w20e:4.0:::::::* cpe:2.3:o:tenda:w20e_firmware:15.11.0.6:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
References	~~() https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2026-24115 -~~	() https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2026-24115 - Exploit, Third Party Advisory
References	~~() https://www.tenda.com.cn/material/show/2707 -~~	() https://www.tenda.com.cn/material/show/2707 - Product
First Time		Tenda Tenda w20e Tenda w20e Firmware
CWE		CWE-120

02 Mar 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-02 15:16

Updated : 2026-03-03 21:15

NVD link : CVE-2026-24115

Mitre link : CVE-2026-24115

CVE.ORG link : CVE-2026-24115

JSON object : View

Products Affected

tenda

w20e_firmware
w20e

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

{"id": "CVE-2026-24115", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2026-03-02T15:16:33.977", "references": [{"url": "https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2026-24115", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.tenda.com.cn/material/show/2707", "tags": ["Product"], "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-120"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Failure to validate the sizes of `gstup` and `gstdwn` before concatenating them into `gstruleQos` may lead to buffer overflow."}], "lastModified": "2026-03-03T21:15:58.057", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:tenda:w20e_firmware:15.11.0.6:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "31C1283D-8DCF-49C0-92FF-34CF842D00BF"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:tenda:w20e:4.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A09E3911-CF3F-4C15-8EF9-5AA8EEA0FC21"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}