CVE-2026-74843Wavlink WN531P3/WN535M1 Export Pingortrace CGI export_pingortrace.cgi strcpy stack-based overflow
Updated under an hour ago ()
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It affects Wavlink WN531P3 and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 10.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
- Weakness (CWE)
- CWE-121, CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Wavlink WN531P3 wavlink:wn531p3 | V250922 | CNA record |
Wavlink WN535M1 wavlink:wn535m1 | V250922 | CNA record |
References
- https://vuldb.com/vuln/391205vdb-entry, technical-description
- https://vuldb.com/vuln/391205/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-74843third-party-advisory
- https://vuldb.com/submit/875331third-party-advisory
- https://github.com/wcndsb-sketch/WAVLINK_WN535M1-M35M1_V250922-Buffer-Overflow/blob/main/CVE-Report-WAVLINK-WN535M1-RCE.pdfexploit
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.