Critical severity9.8NVD Advisory· Published Mar 9, 2018· Updated Jun 17, 2026

CVE-2018-6916

Description

In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p7, 10.4-STABLE, 10.4-RELEASE-p7, and 10.3-RELEASE-p28, the kernel does not properly validate IPsec packets coming from a trusted host. Additionally, a use-after-free vulnerability exists in the IPsec AH handling code. This issue could cause a system crash or other unpredictable results.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

FreeBSD/FreeBSDllm-fuzzy2 versions
before 11.1-STABLE, 11.1-RELEASE-p7, 10.4-STABLE, 10.4-RELEASE-p7, 10.3-RELEASE-p28+ 1 more
- (no CPE)range: before 11.1-STABLE, 11.1-RELEASE-p7, 10.4-STABLE, 10.4-RELEASE-p7, 10.3-RELEASE-p28
- (no CPE)range: All supported versions of FreeBSD

Patches

Vulnerability mechanics

References

www.freebsd.org/security/advisories/FreeBSD-SA-18:01.ipsec.ascnvdPatchVendor Advisory
www.securitytracker.com/id/1040460nvdThird Party AdvisoryVDB Entry

News mentions

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cvss	0.637
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000