{"id":"CVE-2011-0226","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-0226","generatedAt":"2026-10-27T21:44:56.174Z","title":"Integer signedness error in psaux/t1decode.c in FreeType before 2.4.6, as used in CoreGraphics in Apple iOS before 4.2.9 and 4.3.x before 4.3.4 and other products, allows remote attackers to execute arbitrary code or cause a denial of service (memory…","description":"Integer signedness error in psaux/t1decode.c in FreeType before 2.4.6, as used in CoreGraphics in Apple iOS before 4.2.9 and 4.3.x before 4.3.4 and other products, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted Type 1 font in a PDF document, as exploited in the wild in July 2011.","published":"2011-07-19T22:55:01.000Z","lastModified":"2026-06-16T23:27:03.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"2.0","score":9.3,"severity":"HIGH","vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C"},"cwe":["CWE-189"],"affected":["freetype/freetype","apple/iphone os"],"epss":{"score":0.06646,"percentile":0.93827,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (6.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html","source":"product-security@apple.com"},{"url":"http://lists.apple.com/archives/security-announce/2011//Jul/msg00000.html","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://lists.apple.com/archives/security-announce/2011//Jul/msg00001.html","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://lists.nongnu.org/archive/html/freetype-devel/2011-07/msg00014.html","source":"product-security@apple.com"},{"url":"http://lists.nongnu.org/archive/html/freetype-devel/2011-07/msg00015.html","source":"product-security@apple.com"},{"url":"http://lists.nongnu.org/archive/html/freetype-devel/2011-07/msg00020.html","source":"product-security@apple.com"},{"url":"http://lists.nongnu.org/archive/html/freetype-devel/2011-07/msg00026.html","source":"product-security@apple.com"},{"url":"http://lists.nongnu.org/archive/html/freetype-devel/2011-07/msg00028.html","source":"product-security@apple.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00015.html","source":"product-security@apple.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00016.html","source":"product-security@apple.com"},{"url":"http://secunia.com/advisories/45167","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://secunia.com/advisories/45224","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://support.apple.com/kb/HT4802","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://support.apple.com/kb/HT4803","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://support.apple.com/kb/HT5002","source":"product-security@apple.com"},{"url":"http://www.appleinsider.com/articles/11/07/06/hackers_release_new_browser_based_ios_jailbreak_based_on_pdf_exploit.html","source":"product-security@apple.com"},{"url":"http://www.debian.org/security/2011/dsa-2294","source":"product-security@apple.com"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:120","source":"product-security@apple.com"},{"url":"http://www.redhat.com/support/errata/RHSA-2011-1085.html","source":"product-security@apple.com"},{"url":"http://www.securityfocus.com/bid/48619","source":"product-security@apple.com"},{"url":"http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2011//Jul/msg00000.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2011//Jul/msg00001.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.nongnu.org/archive/html/freetype-devel/2011-07/msg00014.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.nongnu.org/archive/html/freetype-devel/2011-07/msg00015.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.nongnu.org/archive/html/freetype-devel/2011-07/msg00020.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.nongnu.org/archive/html/freetype-devel/2011-07/msg00026.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.nongnu.org/archive/html/freetype-devel/2011-07/msg00028.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00015.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00016.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/45167","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/45224","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.apple.com/kb/HT4802","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.apple.com/kb/HT4803","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.apple.com/kb/HT5002","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.appleinsider.com/articles/11/07/06/hackers_release_new_browser_based_ios_jailbreak_based_on_pdf_exploit.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2011/dsa-2294","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:120","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2011-1085.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/48619","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-0226","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}