CVE-2011-2391

NONECVSS 0.0

0.0

The IPv6 implementation in the kernel in Apple iOS before 7 allows remote attackers to cause a denial of service (CPU consumption) via crafted ICMPv6 packets.

CVSS v3: —
EG Score: 0.0(none)
EPSS: 79.6%
KEV: Not listed

Published

September 19, 2013

Last Modified

April 29, 2026

References (30)

cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2014-09/0106.html
cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2014-09/0107.html
cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2014-10/0101.html
cve@mitrehttp://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
cve@mitrehttp://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html
cve@mitrehttp://lists.apple.com/archives/security-announce/2015/Jan/msg00003.html
cve@mitrehttp://osvdb.org/97438
cve@mitrehttp://secunia.com/advisories/54886
cve@mitrehttp://support.apple.com/HT204244
cve@mitrehttp://support.apple.com/kb/HT5934
cve@mitrehttp://support.apple.com/kb/HT6441
cve@mitrehttp://support.apple.com/kb/HT6442
cve@mitrehttp://www.securitytracker.com/id/1029054
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/87222
cve@mitrehttps://support.apple.com/kb/HT6535

Weakness Classification(1)

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

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 12× in last 7d / 20× 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.

2026-06-05 06:08 UTCepss_batch
2026-06-05 06:07 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-28 22:26 UTCEG score recompute
2026-05-28 22:26 UTCGHSA enrichment
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch

Frequently asked(4)

What is CVE-2011-2391?

CVE-2011-2391 is a none vulnerability published on September 19, 2013. The IPv6 implementation in the kernel in Apple iOS before 7 allows remote attackers to cause a denial of service (CPU consumption) via crafted ICMPv6 packets.

When was CVE-2011-2391 disclosed?

CVE-2011-2391 was first published in the National Vulnerability Database on September 19, 2013, 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-2011-2391 actively exploited?

CVE-2011-2391 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 79.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2011-2391?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-2391, 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.

Dependency Blast Radius

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CVE-2011-2391

📅 Published

🔄 Last Modified

🔗 References (30)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2011-2391?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (30)

Frequently asked(4)

Related CVEs(same CWE)