CVE-2009-3955

CVE-2009-3955 is a critical-severity vulnerability in Adobe Acrobat with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 16% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-399.

Key facts

• Severity: Critical (CVSS 2.0 base score 10.0)
• EPSS exploit prediction: 16% (96th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-399
• Affected product: Adobe Acrobat
• Published: 2010-01-13
• Last modified: 2026-06-16

Description

Adobe Reader and Acrobat 9.x before 9.3, and 8.x before 8.2 on Windows and Mac OS X, allows remote attackers to execute arbitrary code via a crafted JPC_MS_RGN marker in the Jp2c stream of a JpxDecode encoded data stream, which triggers an integer sign extension that bypasses a sanity check, leading to memory corruption.

Frequently asked questions

What is CVE-2009-3955?

Adobe Reader and Acrobat 9.x before 9.3, and 8.x before 8.2 on Windows and Mac OS X, allows remote attackers to execute arbitrary code via a crafted JPC_MS_RGN marker in the Jp2c stream of a JpxDecode encoded data stream, which triggers an integer sign extension that bypasses a sanity check, leading to memory corruption.

How severe is CVE-2009-3955?

CVE-2009-3955 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2009-3955 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3955?

CVE-2009-3955 primarily affects Adobe Acrobat. In total, 97 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-3955?

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-2009-3955 published?

CVE-2009-3955 was published on 2010-01-13 and last updated on 2026-06-16.

References

• http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=836
• http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00009.html
• http://secunia.com/advisories/38138
• http://secunia.com/advisories/38215
• http://www.adobe.com/support/security/bulletins/apsb10-02.html
• http://www.redhat.com/support/errata/RHSA-2010-0060.html
• http://www.securityfocus.com/bid/37757
• http://www.securitytracker.com/id?1023446
• http://www.us-cert.gov/cas/techalerts/TA10-013A.html
• http://www.vupen.com/english/advisories/2010/0103
• https://bugzilla.redhat.com/show_bug.cgi?id=554293
• https://exchange.xforce.ibmcloud.com/vulnerabilities/55553
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8255

Affected products (97)

• cpe:2.3:a:adobe:acrobat:*:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:3.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:3.1:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:4.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:4.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:4.0.5a:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:4.0.5c:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:5.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:5.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:5.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:5.0.10:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:6.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:6.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:6.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:6.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:6.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:6.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:6.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.0.7:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.0.8:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.0.9:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:7.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:8.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:8.1:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:8.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:8.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:8.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:8.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:acrobat:8.1.5:*:*:*:*:*:*:*

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All CVEs affecting Adobe Acrobat →

Other CWE-399 (Resource Management Errors) vulnerabilities

• CVE-2015-8104 — Critical (CVSS 10.0): The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a…
• CVE-2015-0339 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
• CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
• CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
• CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
• CVE-2014-0560 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.12 and 11.x before 11.0.09 on Windows and OS…

Browse all CWE-399 (Resource Management Errors) vulnerabilities →