Medium severity6.5NVD Advisory· Published Feb 20, 2020· Updated Jun 17, 2026

CVE-2015-2923

Description

The Neighbor Discovery (ND) protocol implementation in the IPv6 stack in FreeBSD through 10.1 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.

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

Affected products

FreeBSD/FreeBSD2 versions
cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*range: <10.1
- (no CPE)range: <=10.1
FreeBSD/FreeBSDdescription

Patches

Vulnerability mechanics

References

git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/nvdPatchThird Party Advisory
openwall.com/lists/oss-security/2015/04/04/2nvdMailing ListThird Party Advisory
lists.freebsd.org/pipermail/freebsd-net/2015-April/041934.htmlnvdMailing ListVendor Advisory
www.freebsd.org/security/advisories/FreeBSD-SA-15:09.ipv6.ascnvdMitigationVendor Advisory

News mentions

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cvss	0.423
epss	0.001
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000