CVE-2011-2391

CVE-2011-2391 is a medium-severity vulnerability in Apple Itunes with a CVSS 2.0 base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Description

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.

Frequently asked questions

What is CVE-2011-2391?
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.
How severe is CVE-2011-2391?
CVE-2011-2391 has a CVSS 2.0 base score of 6.1, rated medium severity.
Is CVE-2011-2391 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2391?
CVE-2011-2391 primarily affects Apple Itunes. In total, 50 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2391?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-2391 published?
CVE-2011-2391 was published on 2013-09-19 and last updated on 2026-06-16.

References

Affected products (50)

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