CVE-2011-3259

CVE-2011-3259 is a medium-severity vulnerability in Apple Apple Tv with a CVSS 2.0 base score of 5.0. 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-399.

Key facts

Description

The kernel in Apple iOS before 5 and Apple TV before 4.4 does not properly recover memory allocated for incomplete TCP connections, which allows remote attackers to cause a denial of service (resource consumption) by making many connection attempts.

Frequently asked questions

What is CVE-2011-3259?
The kernel in Apple iOS before 5 and Apple TV before 4.4 does not properly recover memory allocated for incomplete TCP connections, which allows remote attackers to cause a denial of service (resource consumption) by making many connection attempts.
How severe is CVE-2011-3259?
CVE-2011-3259 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-3259 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-3259?
CVE-2011-3259 primarily affects Apple Apple Tv. In total, 33 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-3259?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-3259 published?
CVE-2011-3259 was published on 2011-10-14 and last updated on 2026-06-16.

References

Affected products (33)

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