CVE-2006-0747

CVE-2006-0747 is a medium-severity vulnerability in Freetype with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-189.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 12% (96th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-189
• Affected product: Freetype
• Published: 2006-05-23
• Last modified: 2026-06-16

Description

Integer underflow in Freetype before 2.2 allows remote attackers to cause a denial of service (crash) via a font file with an odd number of blue values, which causes the underflow when decrementing by 2 in a context that assumes an even number of values.

Frequently asked questions

What is CVE-2006-0747?

Integer underflow in Freetype before 2.2 allows remote attackers to cause a denial of service (crash) via a font file with an odd number of blue values, which causes the underflow when decrementing by 2 in a context that assumes an even number of values.

How severe is CVE-2006-0747?

CVE-2006-0747 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2006-0747 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-0747?

CVE-2006-0747 affects Freetype. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-0747?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-0747 published?

CVE-2006-0747 was published on 2006-05-23 and last updated on 2026-06-16.

References

• ftp://patches.sgi.com/support/free/security/advisories/20060701-01-U
• http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
• http://lists.suse.com/archive/suse-security-announce/2006-Jun/0012.html
• http://secunia.com/advisories/20525
• http://secunia.com/advisories/20591
• http://secunia.com/advisories/20638
• http://secunia.com/advisories/20791
• http://secunia.com/advisories/21062
• http://secunia.com/advisories/21135
• http://secunia.com/advisories/21385
• http://secunia.com/advisories/21701
• http://secunia.com/advisories/23939
• http://secunia.com/advisories/35074
• http://securitytracker.com/id?1016522
• http://sunsolve.sun.com/search/document.do?assetkey=1-26-102705-1
• http://support.apple.com/kb/HT3549
• http://support.avaya.com/elmodocs2/security/ASA-2006-176.htm
• http://www.debian.org/security/2006/dsa-1095
• http://www.mandriva.com/security/advisories?name=MDKSA-2006:099
• http://www.redhat.com/support/errata/RHSA-2006-0500.html
• http://www.securityfocus.com/archive/1/436836/100/0/threaded
• http://www.securityfocus.com/bid/18326
• http://www.us-cert.gov/cas/techalerts/TA09-133A.html
• http://www.vupen.com/english/advisories/2007/0381
• http://www.vupen.com/english/advisories/2009/1297
• https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=183676
• https://issues.rpath.com/browse/RPL-429
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9508
• https://usn.ubuntu.com/291-1/

Affected products (1)

• cpe:2.3:a:freetype:freetype:*:*:*:*:*:*:*:*

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• CVE-2015-3836 — Critical (CVSS 10.0): The Parse_wave function in arm-wt-22k/lib_src/eas_mdls.c in the Sonivox DLS-to-EAS converter in Android before 5.1.1…
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