Loading vulnerability…
CVE-2026-49425 is an uninitialized-memory disclosure vulnerability in FreeBSD's compat32 kevent() handler. While translating a 64-bit kevent structure into a stack-allocated 32-bit representation, the handler failed to zero-initialize the destination structure. Consequently, uninitialized bytes from kernel stack memory can be returned or otherwise exposed through the compatibility interface.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
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.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An uninitialized kernel stack information-disclosure vulnerability in the compat32 kevent() handler. Failure to zero a stack-allocated 32-bit kevent structure before translating a 64-bit structure can allow an unprivileged local user to observe a small amount of potentially sensitive kernel memory.
An information disclosure vulnerability in FreeBSD compat32 that leaks uninitialized kernel stack memory.
An information disclosure vulnerability in FreeBSD compat32 that leaks uninitialized kernel stack memory.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.