EUVD-2026-26355CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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9DescriptionNVD
When processing the header of an incoming message, libnv failed to properly validate the message size.
The lack of validation allows a malicious program to write outside the bounds of a heap allocation. This can trigger a crash or system panic, and it may be possible for an unprivileged user to exploit the bug to elevate their privileges.
AnalysisAI
Heap buffer overflow in FreeBSD's libnv library allows remote unauthenticated attackers to achieve privilege escalation or denial of service through maliciously crafted message headers. The vulnerability affects FreeBSD versions 13.5, 14.3, 14.4, and 15.0, with patches released in security advisory FreeBSD-SA-26:17.libnv. …
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RemediationAI
Within 24 hours: Identify all FreeBSD systems running versions 13.5, 14.3, 14.4, or 15.0 and document network exposure. Within 7 days: Apply FreeBSD-SA-26:17.libnv security advisory patches immediately upon vendor release confirmation; verify patched versions via freebsd-version command. …
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