Vulnerability Description
A security vulnerability has been detected in Wavlink WL-NU516U1 up to 130/260. This affects the function sub_406194 of the file /cgi-bin/adm.cgi. Such manipulation of the argument firmware_url leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/Wlz1112/Wavlink-NU516U1-V251208-/blob/main/firmware_url.md
- https://vuldb.com/?ctiid.346173
- https://vuldb.com/?id.346173
- https://vuldb.com/?submit.751908
FAQ
What is CVE-2026-2566?
CVE-2026-2566 is a vulnerability with a CVSS score of 7.2 (HIGH). A security vulnerability has been detected in Wavlink WL-NU516U1 up to 130/260. This affects the function sub_406194 of the file /cgi-bin/adm.cgi. Such manipulation of the argument firmware_url leads ...
How severe is CVE-2026-2566?
CVE-2026-2566 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-2566?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.