CVE-2012-1134

CVE-2012-1134 is a critical-severity vulnerability in Freetype with a CVSS 2.0 base score of 9.3. 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-119.

Key facts

• Severity: Critical (CVSS 2.0 base score 9.3)
• EPSS exploit prediction: 5% (91st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Freetype
• Published: 2012-04-25
• Last modified: 2026-06-16

Description

FreeType before 2.4.9, as used in Mozilla Firefox Mobile before 10.0.4 and other products, allows remote attackers to cause a denial of service (invalid heap write operation and memory corruption) or possibly execute arbitrary code via crafted private-dictionary data in a Type 1 font.

Frequently asked questions

What is CVE-2012-1134?

FreeType before 2.4.9, as used in Mozilla Firefox Mobile before 10.0.4 and other products, allows remote attackers to cause a denial of service (invalid heap write operation and memory corruption) or possibly execute arbitrary code via crafted private-dictionary data in a Type 1 font.

How severe is CVE-2012-1134?

CVE-2012-1134 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2012-1134 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-1134?

CVE-2012-1134 primarily affects Freetype. In total, 62 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-1134?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2012-1134 published?

CVE-2012-1134 was published on 2012-04-25 and last updated on 2026-06-16.

References

• http://lists.apple.com/archives/security-announce/2012/Sep/msg00003.html
• http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00002.html
• http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00003.html
• http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00015.html
• http://rhn.redhat.com/errata/RHSA-2012-0467.html
• http://secunia.com/advisories/48300
• http://secunia.com/advisories/48508
• http://secunia.com/advisories/48758
• http://secunia.com/advisories/48797
• http://secunia.com/advisories/48822
• http://secunia.com/advisories/48918
• http://secunia.com/advisories/48951
• http://secunia.com/advisories/48973
• http://security.gentoo.org/glsa/glsa-201204-04.xml
• http://support.apple.com/kb/HT5503
• http://www.debian.org/security/2012/dsa-2428
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:057
• http://www.mozilla.org/security/announce/2012/mfsa2012-21.html
• http://www.openwall.com/lists/oss-security/2012/03/06/16
• http://www.securityfocus.com/bid/52318
• http://www.securitytracker.com/id?1026765
• http://www.ubuntu.com/usn/USN-1403-1
• https://bugzilla.mozilla.org/show_bug.cgi?id=733512
• https://bugzilla.redhat.com/show_bug.cgi?id=800592

Affected products (62)

• cpe:2.3:a:freetype:freetype:*:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:1.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.1:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.1.5:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.1.6:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.1.7:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.1.8:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.1.8:rc1:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.1.9:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.1.10:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.3:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.4:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.5:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.6:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.7:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.8:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.9:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.10:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.11:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.3.12:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:freetype:freetype:2.4.2:*:*:*:*:*:*:*

More vulnerabilities in Freetype

• CVE-2012-1126 — Critical (CVSS 10.0): FreeType before 2.4.9, as used in Mozilla Firefox Mobile before 10.0.4 and other products, allows remote attackers to…
• CVE-2022-27404 — Critical (CVSS 9.8): FreeType commit 1e2eb65048f75c64b68708efed6ce904c31f3b2f was discovered to contain a heap buffer overflow via the…
• CVE-2015-9290 — Critical (CVSS 9.8): In FreeType before 2.6.1, a buffer over-read occurs in type1/t1parse.c on function T1_Get_Private_Dict where there is…
• CVE-2017-8287 — Critical (CVSS 9.8): FreeType 2 before 2017-03-26 has an out-of-bounds write caused by a heap-based buffer overflow related to the…
• CVE-2017-8105 — Critical (CVSS 9.8): FreeType 2 before 2017-03-24 has an out-of-bounds write caused by a heap-based buffer overflow related to the…
• CVE-2017-7864 — Critical (CVSS 9.8): FreeType 2 before 2017-02-02 has an out-of-bounds write caused by a heap-based buffer overflow related to the…

All CVEs affecting Freetype →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

• CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
• CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
• CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
• CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
• CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
• CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →