CVE-2009-3431

Stack consumption vulnerability in Adobe Reader and Acrobat 9.1.3, 9.1.2, 9.1.1, and earlier 9.x...

5.0 MediumPublic exploit

Stack consumption vulnerability in Adobe Reader and Acrobat 9.1.3, 9.1.2, 9.1.1, and earlier 9.x versions; 8.1.6 and earlier 8.x versions; and possibly 7.1.4 and earlier 7.x versions allows remote attackers to cause a denial of service (application crash) via a PDF file with a large number of [ (open square bracket) characters in the argument to the alert method. NOTE: some of these details are obtained from third party information.

Exploit likelihood

22.0%Up 13.4 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2009-3431
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-3431
Updated: 2026-11-02

EUVDEUVD-2009-3413 No score

Record: EUVD-2009-3413
Updated: 2026-11-03

GitHub AdvisoriesGHSA-7phm-f5vw-fc7p No score

Stack consumption vulnerability in Adobe Reader and Acrobat 9.1.3, 9.1.2, 9.1.1, and earlier 9.x...

Record: GHSA-7phm-f5vw-fc7p
Weakness: CWE-119
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`acroread` Red Hat:rhel_extras:3 From an advisory covering 18 CVEs	before 0:8.1.7-1	0:8.1.7-1
`acroread-plugin` Red Hat:rhel_extras:3 From an advisory covering 18 CVEs	before 0:8.1.7-1	0:8.1.7-1
`acroread` Red Hat:rhel_extras:4 From an advisory covering 18 CVEs	before 0:8.1.7-1.el4	0:8.1.7-1.el4
`acroread-plugin` Red Hat:rhel_extras:4 From an advisory covering 18 CVEs	before 0:8.1.7-1.el4	0:8.1.7-1.el4
`acroread` Red Hat:rhel_extras:5::client From an advisory covering 18 CVEs	before 0:8.1.7-1.el5	0:8.1.7-1.el5
`acroread-plugin` Red Hat:rhel_extras:5::client From an advisory covering 18 CVEs	before 0:8.1.7-1.el5	0:8.1.7-1.el5
`acroread` Red Hat:rhel_extras:5::server From an advisory covering 18 CVEs	before 0:8.1.7-1.el5	0:8.1.7-1.el5
`acroread-plugin` Red Hat:rhel_extras:5::server From an advisory covering 18 CVEs	before 0:8.1.7-1.el5	0:8.1.7-1.el5

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Adobe Acrobat 9.1.3 - Stack Exhaustion Denial of Service	2009-05-29

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-3431 is a medium vulnerability (CVSS 5.0) in Adobe Acrobat, published September 25, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 22.0%, the 97th percentile. No source names a fixed version.

References

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