CVE-2015-2922

3.3 LOW 3% exploit odds Fix listed

What it is

The ndisc_router_discovery function in net/ipv6/ndisc.c in the Neighbor Discovery (ND) protocol implementation in the IPv6 stack in the Linux kernel before 3.19.6 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.

At a glance

Exploitability: Can be exploited from the same network segment without logging in. Limited direct impact.
Exploit odds: 3.0% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2015-05-27 10:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 00:24 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.0% in the next 30 days (EPSS).
Severity: 3.3 LOW (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2015-05-27 10:59 UTC
Last modified: 2026-06-17 00:24 UTC
Exploit probability: 3.0% · EPSS, next 30 days
Weakness: CWE-17
Record status: Modified

Affected

Linux Kernel ≤ 3.19.5
Fedoraproject Fedora 20
Fedoraproject Fedora 21
Fedoraproject Fedora 22
Oracle Linux 5.0
Oracle Solaris 11.3
Redhat Enterprise Mrg 2.5
Debian Linux 7.0

Attack profile CVSS 2.0 · 3.3

Attack vector: Adjacent network
Complexity: Low
Authentication: None
Confidentiality: None
Integrity: None
Availability: Partial

Raw vector

AV:A/AC:L/Au:N/C:N/I:N/A:P

Is it in your code?

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Fix and advisories

References

NVD record · CVE.org record