SEPTEMBER 17, 2026
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Case File

CVE-2026-74843

CRITICAL · CVSS 10 EPSS 0.58% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-17 · Last synced 2026-09-16

CyberRota Analysis

AI-Generated

A stack-based buffer overflow vulnerability exists in the Export Pingortrace CGI component of Wavlink WN531P3 and WN535M1 V250922 devices, specifically within the strcpy function handling the HTTP_COOKIE argument. This critical flaw allows for remote code execution, potentially compromising the affected devices. Organizations using these Wavlink products should prioritize immediate patching or mitigation efforts to safeguard against potential exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-74843
Severity
CRITICAL
CVSS
10
EPSS
0.58%

Original NVD Description

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.