1. Home
  2. CVE Database
  3. CVE-2026-35547
HIGH · 8.1

CVE-2026-35547

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 allocati...

Vulnerability Description

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.

CVSS Score

8.1

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
FreebsdFreebsd13.5

Related Weaknesses (CWE)

CWE-122CWE-130

References

FAQ

What is CVE-2026-35547?

CVE-2026-35547 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 allocati...

How severe is CVE-2026-35547?

CVE-2026-35547 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-35547?

Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.