CVE-2015-2923

MediumCVSS 6.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://openwall.com/lists/oss-security/2015/04/04/2Mailing List, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6fd99094de2b83d1d4c8457f2c83483b2828e75aPatch, Third Party Advisory
https://lists.freebsd.org/pipermail/freebsd-net/2015-April/041934.htmlMailing List, Vendor Advisory
https://www.freebsd.org/security/advisories/FreeBSD-SA-15:09.ipv6.ascMitigation, Vendor Advisory
http://openwall.com/lists/oss-security/2015/04/04/2Mailing List, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6fd99094de2b83d1d4c8457f2c83483b2828e75aPatch, Third Party Advisory
https://lists.freebsd.org/pipermail/freebsd-net/2015-April/041934.htmlMailing List, Vendor Advisory
https://www.freebsd.org/security/advisories/FreeBSD-SA-15:09.ipv6.ascMitigation, Vendor Advisory

Timeline

Published: Feb 20, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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