CVE-2009-0945

CVE-2009-0945 is a critical-severity vulnerability in Apple Safari 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-94.

Key facts

• Severity: Critical (CVSS 2.0 base score 9.3)
• EPSS exploit prediction: 9% (95th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-94
• Affected product: Apple Safari
• Published: 2009-05-13
• Last modified: 2026-06-16

Description

Array index error in the insertItemBefore method in WebKit, as used in Apple Safari before 3.2.3 and 4 Public Beta, iPhone OS 1.0 through 2.2.1, iPhone OS for iPod touch 1.1 through 2.2.1, Google Chrome Stable before 1.0.154.65, and possibly other products allows remote attackers to execute arbitrary code via a document with a SVGPathList data structure containing a negative index in the (1) SVGTransformList, (2) SVGStringList, (3) SVGNumberList, (4) SVGPathSegList, (5) SVGPointList, or (6) SVGLengthList SVGList object, which triggers memory corruption.

Frequently asked questions

What is CVE-2009-0945?

Array index error in the insertItemBefore method in WebKit, as used in Apple Safari before 3.2.3 and 4 Public Beta, iPhone OS 1.0 through 2.2.1, iPhone OS for iPod touch 1.1 through 2.2.1, Google Chrome Stable before 1.0.154.65, and possibly other products allows remote attackers to execute arbitrary code via a document with a SVGPathList data structure containing a negative index in the (1) SVGTransformList, (2) SVGStringList, (3) SVGNumberList, (4) SVGPathSegList, (5) SVGPointList, or (6) SVGLengthList SVGList object, which triggers memory corruption.

How severe is CVE-2009-0945?

CVE-2009-0945 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-0945 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0945?

CVE-2009-0945 primarily affects Apple Safari. In total, 55 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-0945?

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-2009-0945 published?

CVE-2009-0945 was published on 2009-05-13 and last updated on 2026-06-16.

References

• http://code.google.com/p/chromium/issues/detail?id=9019
• http://googlechromereleases.blogspot.com/2009/05/stable-update-bug-fix.html
• http://lists.apple.com/archives/security-announce/2009/Jun/msg00005.html
• http://lists.apple.com/archives/security-announce/2009/May/msg00000.html
• http://lists.apple.com/archives/security-announce/2009/May/msg00001.html
• http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
• http://secunia.com/advisories/35056
• http://secunia.com/advisories/35074
• http://secunia.com/advisories/35095
• http://secunia.com/advisories/35576
• http://secunia.com/advisories/35805
• http://secunia.com/advisories/36062
• http://secunia.com/advisories/36461
• http://secunia.com/advisories/36790
• http://secunia.com/advisories/37746
• http://secunia.com/advisories/43068
• http://support.apple.com/kb/HT3549
• http://support.apple.com/kb/HT3550
• http://support.apple.com/kb/HT3639
• http://www.debian.org/security/2009/dsa-1950
• http://www.redhat.com/support/errata/RHSA-2009-1130.html
• http://www.securityfocus.com/archive/1/503594/100/0/threaded
• http://www.securityfocus.com/bid/34924
• http://www.securitytracker.com/id?1022207
• http://www.ubuntu.com/usn/USN-822-1
• http://www.ubuntu.com/usn/USN-836-1
• http://www.ubuntu.com/usn/USN-857-1
• http://www.us-cert.gov/cas/techalerts/TA09-133A.html
• http://www.vupen.com/english/advisories/2009/1297

Affected products (55)

• cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:0.8:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:0.9:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.0:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.0:beta:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.0:beta2:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.0.0b1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.0.0b2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.0.3:85.8:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.0.3:85.8.1:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.2.4:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.2.5:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.3:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.3.2:312.5:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:1.3.2:312.6:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:2.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:2.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:2.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:2.0.3:417.8:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:2.0.3:417.9:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:2.0.3:417.9.2:*:*:*:*:*:*
• cpe:2.3:a:apple:safari:2.0.4:*:*:*:*:*:*:*

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