Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wavlink | Wl-Wn579X3-C Firmware | 231124 |
| Wavlink | Wl-Wn579X3-C | - |
Related Weaknesses (CWE)
References
- https://github.com/Litengzheng/vul_db/blob/main/WL-WN579X3-C/vul_200/README.mdExploitThird Party Advisory
- https://vuldb.com/submit/779149Third Party AdvisoryVDB Entry
- https://vuldb.com/vuln/353891Third Party AdvisoryVDB Entry
- https://vuldb.com/vuln/353891/ctiPermissions RequiredVDB Entry
FAQ
What is CVE-2026-5004?
CVE-2026-5004 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 arg...
How severe is CVE-2026-5004?
CVE-2026-5004 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-5004?
Check the references section above for vendor advisories and patch information. Affected products include: Wavlink Wl-Wn579X3-C Firmware, Wavlink Wl-Wn579X3-C.