CRITICAL 9.3 NVD
CVE-2026-74843
A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function strcpy of the file /etc/lighttpd/www/cgi-b
A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function strcpy of the file /etc/lighttpd/www/cgi-bin/export_pingortrace.cgi of the component Export Pingortrace CGI. Executing a manipulation of the argument HTTP_COOKIE can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.
References
- https://github.com/wcndsb-sketch/WAVLINK_WN535M1-M35M1_V250922-Buffer-Overflow/blob/main/C
- https://vuldb.com/cve/CVE-2026-74843
- https://vuldb.com/submit/875331
- https://vuldb.com/vuln/391205
- https://vuldb.com/vuln/391205/cti
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-08-17 via NVD.
Risk Timeline
CVE Disclosed2026-08-17 · -1 days ago
Remediation Resources
Official Advisory
vuldb.com/cve/CVE-2026-74843Official Advisory
vuldb.com/vuln/391205Analysis & PoC
vuldb.com/submit/875331
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