CVE-2012-5366

HIGHNVD 7.57.5—

7.5

The IPv6 implementation in Apple Mac OS X (unknown versions, year 2012 and earlier) allows remote attackers to cause a denial of service via a flood of ICMPv6 Router Advertisement packets containing multiple Routing entries.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 76.5%
KEV: Not listed

Published

February 20, 2020

Last Modified

November 21, 2024

References (4)

cve@mitrehttp://www.openwall.com/lists/oss-security/2012/10/10/12
cve@mitrehttps://www.securityfocus.com/bid/56170/info
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2012/10/10/12
af854a3a-2127-422b-91ae-364da2661108https://www.securityfocus.com/bid/56170/info

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 07:25 UTCEG score recompute
2026-05-27 07:24 UTCGHSA enrichment
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch

Frequently asked(5)

What is CVE-2012-5366?

CVE-2012-5366 is a high vulnerability published on February 20, 2020. The IPv6 implementation in Apple Mac OS X (unknown versions, year 2012 and earlier) allows remote attackers to cause a denial of service via a flood of ICMPv6 Router Advertisement packets containing multiple Routing entries.

When was CVE-2012-5366 disclosed?

CVE-2012-5366 was first published in the National Vulnerability Database on February 20, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2012-5366 actively exploited?

CVE-2012-5366 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 76.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2012-5366?

CVE-2012-5366 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2012-5366?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-5366, 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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CVE-2012-5366

📅 Published

🔄 Last Modified

🔗 References (4)