CVE-2026-35547 — Heap overflow in libnv

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
FreeBSD / FreeBSD	affected 15.0-RELEASE before p7; affected 14.4-RELEASE before p3; affected 14.3-RELEASE before p12; affected 13.5-RELEASE before p13

CWE

CWE-122, CWE-130

References

https://security.freebsd.org/advisories/FreeBSD-SA-26:17.libnv.asc

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.