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CVE-2011-2809

23
FAUCET Score

CVE-2011-2809 describes a critical vulnerability in WebKit, specifically impacting Apple iTunes before version 10.5, that could be exploited during iTunes Store browsing. This flaw allows man-in-the-middle attackers to execute arbitrary code or trigger a denial of service through memory corruption and application crashes. With a CVSS score of 7.6, it presents a high risk due to its network attack vector, high impact on confidentiality, integrity, and availability, despite requiring high attack complexity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.4.1CPE matchmatch criteria
cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:apple:itunes:4.0.0:*:*:*:*:*:*:*
4.0.1CPE matchmatch criteria
cpe:2.3:a:apple:itunes:4.0.1:*:*:*:*:*:*:*
4.1.0CPE matchmatch criteria
cpe:2.3:a:apple:itunes:4.1.0:*:*:*:*:*:*:*
4.2.0CPE matchmatch criteria
cpe:2.3:a:apple:itunes:4.2.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.6HIGH

AV:N/AC:H/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.60%
Probability of exploitation in next 30 days
EPSS Percentile
83.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0260 is in the 41st percentile among its peer group of 8,915 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.apple.com / archives/Security-announce/2011//Oct/msg00000.html
lists.apple.com / archives/Security-announce/2011//Oct/msg00001.html
lists.apple.com / archives/Security-announce/2011//Oct/msg00004.html
exchange.xforce.ibmcloud.com / vulnerabilities/70502
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16724
support.apple.com / kb/HT4981
support.apple.com / kb/HT4999
support.apple.com / kb/HT5000
securityfocus.com / bid/50066