CVE-2012-0207

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-04. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 20%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

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 v3
7.5
EG Score
7.5(medium)
EPSS
97.2%
KEV
Not listed

Published

May 17, 2012

Last Modified

April 29, 2026

Advisory Details (6)

Auto-updated May 29, 2026
Patch available. Sources: redhat, github_commit.
generic
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.1
generic Patch Available

#654876 - CVE-2012-0207: divide error and panic when receiving mixed IGMP queries - Debian Bug report logs

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=654876
github_commit

commit a8c1f65c79cb (torvalds/linux)

Fix landed in torvalds/linux commit a8c1f65c79cb — awaiting tagged release

https://github.com/torvalds/linux/commit/a8c1f65c79cbbb2f7da782d4c9d15639a9b94b27
github_commit

commit 25c413ad0029 (torvalds/linux)

Fix landed in torvalds/linux commit 25c413ad0029 — awaiting tagged release

https://github.com/torvalds/linux/commit/25c413ad0029ea86008234be28aee33456e53e5b
redhat Patch Available

772867 – (CVE-2012-0207) CVE-2012-0207 kernel: igmp: Avoid zero delay when receiving odd mixture of IGMP queries

Affected: Red Hat Enterprise Linux 4 as it did not backport the upstream commit 5b7c8406.

https://bugzilla.redhat.com/show_bug.cgi?id=772867
generic

oss-security - CVE-2012-0207 kernel: igmp: Avoid zero delay when receiving odd mixture of IGMP queries

http://www.openwall.com/lists/oss-security/2012/01/10/5

Patch Availability(10)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-2.6.38-13-powerpc-smp (2.6.38-13.56) @ natty2026-05-29ubuntu
ubuntulinux-image-3.0.0-16-generic (3.0.0-16.28) @ oneiric2026-05-29ubuntu
ubuntulinux-image-2.6.38-13-generic (2.6.38-13.56~lucid1) @ lucid2026-05-29ubuntu
ubuntulinux-image-3.0.0-1207-omap4 (3.0.0-1207.16) @ oneiric2026-05-29ubuntu
ubuntulinux-image-2.6.38-1209-omap4 (2.6.38-1209.21) @ natty2026-05-29ubuntu
ubuntulinux-image-3.0.0-16-generic-pae (3.0.0-16.29~lucid1) @ lucid2026-05-29ubuntu
redhatrhev-hypervisor6-0:6.2-20120320.0.el6_22012-03-26redhat
redhatkernel-0:2.6.32-220.7.1.el62012-03-06redhat
redhatkernel-rt-0:3.0.18-rt34.53.el6rt2012-02-23redhat
redhatkernel-0:2.6.18-274.18.1.el52012-02-09redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(10)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 9× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:23 UTCEPSS rescore
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  10. 2026-06-28 14:03 UTCEPSS rescore
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  1. 2026-06-18 17:49 UTCEPSS rescore
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  8. 2026-06-14 23:14 UTCEPSS rescore
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  10. 2026-06-13 22:57 UTCEPSS rescore
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  24. 2026-06-02 20:10 UTCEPSS rescore
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  26. 2026-06-01 13:49 UTCEPSS rescore
  27. 2026-05-31 22:28 UTCEPSS rescore
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  31. 2026-05-29 13:41 UTCEPSS rescore
  32. 2026-05-29 04:34 UTCEG score recompute
  33. 2026-05-29 04:34 UTCVendor advisory
  34. 2026-05-29 04:34 UTCGHSA enrichment
  35. 2026-05-28 13:42 UTCEPSS rescore
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  37. 2026-05-27 13:38 UTCEPSS rescore
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  41. 2026-05-26 07:16 UTCEPSS rescore
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  44. 2026-05-24 16:43 UTCEPSS rescore
  45. 2026-05-21 22:39 UTCEPSS rescore
  46. 2026-05-20 22:37 UTCEPSS rescore
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  49. 2026-05-20 11:21 UTCEPSS rescore
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  52. 2026-05-18 21:29 UTCEPSS rescore
  53. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-18378
    First seen Jan 17, 2012

    Linux Kernel 2.6.36 IGMP - Remote Denial of Service

    Open source ↗

Frequently asked(5)

What is CVE-2012-0207?
CVE-2012-0207 is a high vulnerability published on May 17, 2012. The igmpheardquery 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.
When was CVE-2012-0207 disclosed?
CVE-2012-0207 was first published in the National Vulnerability Database on May 17, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-0207 actively exploited?
CVE-2012-0207 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2012-0207?
CVE-2012-0207 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2012-0207?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-0207, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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