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Vulnerability record · CVE-2012-0207 · published 17 May 2012

CVE-2012-0207: Linux kernel divide by zero vulnerability

Linux · Linux Kernel

The igmp_heard_query function in net/ipv4/igmp.c in the Linux kernel before 3.2.1 allows remote attackers to cause a denial of service (divide-by-zero error and panic) via IGMP packets.

7.5 CVSS 3.1 High EPSS 20% · top 2.6% CWE-369 · Divide by zero
7.5CVSS 3.1 base score, v2 7.8
20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
14References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

The igmp_heard_query function in net/ipv4/igmp.c in the Linux kernel before 3.2.1 allows remote attackers to cause a denial of service (divide-by-zero error and panic) via IGMP packets.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=654876 ExploitMailing ListThird Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a8c1f65c79cbbb2f7da782d4c9d15639a9b94b27
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.1 Mailing ListPatchVendor Advisory
http://www.openwall.com/lists/oss-security/2012/01/10/5 Mailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=772867 Issue TrackingPatchThird Party Advisory
https://github.com/torvalds/linux/commit/25c413ad0029ea86008234be28aee33456e53e5b PatchThird Party Advisory
https://github.com/torvalds/linux/commit/a8c1f65c79cbbb2f7da782d4c9d15639a9b94b27 PatchThird Party Advisory
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=654876 ExploitMailing ListThird Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a8c1f65c79cbbb2f7da782d4c9d15639a9b94b27
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.1 Mailing ListPatchVendor Advisory
http://www.openwall.com/lists/oss-security/2012/01/10/5 Mailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=772867 Issue TrackingPatchThird Party Advisory
https://github.com/torvalds/linux/commit/25c413ad0029ea86008234be28aee33456e53e5b PatchThird Party Advisory
https://github.com/torvalds/linux/commit/a8c1f65c79cbbb2f7da782d4c9d15639a9b94b27 PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2012-0207), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.