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CVE-2011-0227

22
FAUCET Score

CVE-2011-0227 is a privilege escalation vulnerability affecting Apple iOS before versions 4.2.9 and 4.3.4, specifically within the IOMobileFrameBuffer's queueing primitives. It stems from improper type conversion, allowing a local attacker to gain elevated privileges through a specially crafted application. With a CVSS score of 7.2, this vulnerability is considered high severity due to its low attack complexity and complete impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.2.8CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:1.0.0:*:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:1.0.1:*:*:*:*:*:*:*
1.0.2CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:1.0.2:*:*:*:*:*:*:*
1.1.0CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:1.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
23.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 21st percentile among its peer group of 3,241 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 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

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

lists.apple.com / archives/security-announce/2011//Jul/msg00000.html
Vendor Advisory
lists.apple.com / archives/security-announce/2011//Jul/msg00001.html
Vendor Advisory
support.apple.com / kb/HT4802
Vendor Advisory
support.apple.com / kb/HT4803
Vendor Advisory