CVE-2026-5004

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

8.8 /10

CVSS v3 : HIGH

V3 Legend

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

V2 Legend

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

03 Apr 2026, 11:30

Type Values Removed Values Added
CPE cpe:2.3:o:wavlink:wl-wn579x3-c_firmware:231124:*:*:*:*:*:*:*
cpe:2.3:h:wavlink:wl-wn579x3-c:-:*:*:*:*:*:*:*
Summary
  • (es) Una vulnerabilidad fue determinada en Wavlink WL-WN579X3-C 231124. Esto afecta la función sub_4019FC del archivo /cgi-bin/firewall.cgi del componente Gestor UPNP. La ejecución de una manipulación del argumento UpnpEnabled puede llevar a un desbordamiento de búfer basado en pila. Es posible lanzar el ataque de forma remota. El exploit ha sido divulgado públicamente y puede ser utilizado. El proveedor fue contactado tempranamente sobre esta divulgación pero no respondió de ninguna manera.
References () https://github.com/Litengzheng/vul_db/blob/main/WL-WN579X3-C/vul_200/README.md - () https://github.com/Litengzheng/vul_db/blob/main/WL-WN579X3-C/vul_200/README.md - Exploit, Third Party Advisory
References () https://vuldb.com/submit/779149 - () https://vuldb.com/submit/779149 - Third Party Advisory, VDB Entry
References () https://vuldb.com/vuln/353891 - () https://vuldb.com/vuln/353891 - Third Party Advisory, VDB Entry
References () https://vuldb.com/vuln/353891/cti - () https://vuldb.com/vuln/353891/cti - Permissions Required, VDB Entry
First Time Wavlink wl-wn579x3-c Firmware
Wavlink wl-wn579x3-c
Wavlink
CWE CWE-787

28 Mar 2026, 18:15

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-28 18:15

Updated : 2026-04-03 11:30

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_firmware
  • wl-wn579x3-c
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