CVE-2026-5004

A vulnerability was determined in Wavlink WL-WN579X3-C 231124. This impacts the function sub_4019FC of the file /cgi-bin/firewall.cgi of the component UPNP Handler. Executing a manipulation of the argument UpnpEnabled can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

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

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/Litengzheng/vul_db/blob/main/WL-WN579X3-C/vul_200/README.md	Exploit Third Party Advisory
https://vuldb.com/submit/779149	Third Party Advisory VDB Entry
https://vuldb.com/vuln/353891	Third Party Advisory VDB Entry
https://vuldb.com/vuln/353891/cti	Permissions Required VDB Entry

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:wavlink:wl-wn579x3-c_firmware:231124:*:*:*:*:*:*:*

cpe:2.3:h:wavlink:wl-wn579x3-c:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-28 18:15

Updated : 2026-06-17 10:58

NVD link : CVE-2026-5004

Mitre link : CVE-2026-5004

CVE.ORG link : CVE-2026-5004

JSON object : View

Products Affected

wavlink

wl-wn579x3-c
wl-wn579x3-c_firmware

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-121

Stack-based Buffer Overflow

CWE-787

Out-of-bounds Write

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El proveedor fue contactado tempranamente sobre esta divulgaci\u00f3n pero no respondi\u00f3 de ninguna manera."}], "lastModified": "2026-06-17T10:58:14.583", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:wavlink:wl-wn579x3-c_firmware:231124:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7671CD24-8B40-4B35-B1DC-0B863E707F28"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:wavlink:wl-wn579x3-c:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "824705E8-A90D-4055-A3A1-9FAAD0458D75"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cna@vuldb.com"}