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CVE-2011-0226

31
FAUCET Score

CVE-2011-0226 describes an integer signedness error in the FreeType library, specifically in psaux/t1decode.c, affecting versions prior to 2.4.6. This vulnerability impacts products like Apple iOS (before 4.2.9 and 4.3.x before 4.3.4) and other FreeType integrations. With a CVSS score of 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C), it is a critical vulnerability that can be exploited remotely with medium complexity, potentially leading to arbitrary code execution or denial of service through memory corruption via a crafted Type 1 font embedded in a PDF. This vulnerability was actively exploited in the wild in July 2011, though there is no public exploit code available in Metasploit or ExploitDB, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.4.5CPE matchmatch criteria
cpe:2.3:a:freetype:freetype:*:*:*:*:*:*:*:*
2.2.1CPE matchmatch criteria
cpe:2.3:a:freetype:freetype:2.2.1:*:*:*:*:*:*:*
2.2.10CPE matchmatch criteria
cpe:2.3:a:freetype:freetype:2.2.10:*:*:*:*:*:*:*
2.3.0CPE matchmatch criteria
cpe:2.3:a:freetype:freetype:2.3.0:*:*:*:*:*:*:*
2.3.1CPE matchmatch criteria
cpe:2.3:a:freetype:freetype:2.3.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.65%
Probability of exploitation in next 30 days
EPSS Percentile
93.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0665 is in the 68th percentile among its peer group of 8,920 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: freetype-0:2.3.11-6.el6_1.6
View patch
applevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2011-0226Important

freetype: postscript type1 font parsing vulnerability

Jul 8, 2011

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
lists.apple.com / archives/Security-announce/2011//Oct/msg00003.html
lists.nongnu.org / archive/html/freetype-devel/2011-07/msg00014.html
lists.nongnu.org / archive/html/freetype-devel/2011-07/msg00015.html
lists.nongnu.org / archive/html/freetype-devel/2011-07/msg00020.html
lists.nongnu.org / archive/html/freetype-devel/2011-07/msg00026.html
lists.nongnu.org / archive/html/freetype-devel/2011-07/msg00028.html
lists.opensuse.org / opensuse-security-announce/2011-07/msg00015.html
lists.opensuse.org / opensuse-security-announce/2011-07/msg00016.html
secunia.com / advisories/45167
Vendor Advisory
secunia.com / advisories/45224
Vendor Advisory
support.apple.com / kb/HT4802
Vendor Advisory
support.apple.com / kb/HT4803
Vendor Advisory
support.apple.com / kb/HT5002
appleinsider.com / articles/11/07/06/hackers_release_new_browser_based_ios_jailbreak_based_on_pdf_exploit.html
debian.org / security/2011/dsa-2294
mandriva.com / security/advisories
redhat.com / support/errata/RHSA-2011-1085.html
securityfocus.com / bid/48619