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CVE-2026-74843 is a remotely exploitable stack-based buffer overflow vulnerability affecting Wavlink WN531P3 and WN535M1 devices running firmware version V250922. The flaw is in the Export Pingortrace CGI component, where the CGI handler uses the strcpy function to process attacker-controlled input from the HTTP_COOKIE argument without adequate bounds checking. This unsafe copy operation can overflow stack memory and corrupt execution state. The vulnerable code resides in the Export Pingortrace CGI handler and can be reached over the network, making the issue exploitable without local access. Public disclosure indicates exploit details are available.
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What an attacker gets, and what they’ve been doing with it.
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No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.