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CVE-2011-3259

18
FAUCET Score

CVE-2011-3259 describes a denial-of-service vulnerability affecting Apple iOS before version 5 and Apple TV before version 4.4. The flaw stems from the kernel's failure to properly release memory allocated for incomplete TCP connections, allowing remote attackers to exhaust system resources by initiating numerous connection attempts. With a CVSS score of 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P), this vulnerability is remotely exploitable with low attack complexity, leading to a partial availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:a:apple:apple_tv:4.0:*:*:*:*:*:*:*
4.1CPE matchmatch criteria
cpe:2.3:a:apple:apple_tv:4.1:*:*:*:*:*:*:*
4.2CPE matchmatch criteria
cpe:2.3:a:apple:apple_tv:4.2:*:*:*:*:*:*:*
4.3CPE matchmatch criteria
cpe:2.3:a:apple:apple_tv:4.3:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:3.0:-:iphone:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.44%
Probability of exploitation in next 30 days
EPSS Percentile
82.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0244 is in the 74th percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

lists.apple.com / archives/Security-announce/2011//Oct/msg00001.html
Vendor Advisory
lists.apple.com / archives/Security-announce/2011//Oct/msg00002.html
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/70530
support.apple.com / kb/HT4999
Vendor Advisory
support.apple.com / kb/HT5001
Vendor Advisory
securityfocus.com / bid/50087