CVE-2012-2744

7.8 HIGH 4% exploit odds Fix listed

What it is

net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the nf_conntrack_ipv6 module is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 packets.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 4.5% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2012-08-09 10:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:42 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 4.5% in the next 30 days (EPSS).
Severity: 7.8 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2012-08-09 10:29 UTC
Last modified: 2026-06-16 23:42 UTC
Exploit probability: 4.5% · EPSS, next 30 days
Record status: Modified

Affected

Linux Kernel ≤ 2.6.33.20
Linux Kernel 2.6.33
Linux Kernel 2.6.33.1
Linux Kernel 2.6.33.2
Linux Kernel 2.6.33.3
Linux Kernel 2.6.33.4
Linux Kernel 2.6.33.5
Linux Kernel 2.6.33.6

Attack profile CVSS 2.0 · 7.8

Attack vector: Network
Complexity: Low
Authentication: None
Confidentiality: None
Integrity: None
Availability: Complete

Raw vector

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

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2012-2744.md and follow it. Check whether this project is affected by CVE-2012-2744. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record