CVE-2009-0520

Adobe Flash Player 9.x before 9.0.159.0 and 10.x before 10.0.22.87 does not properly remove...

9.3 HighPublic exploit

Adobe Flash Player 9.x before 9.0.159.0 and 10.x before 10.0.22.87 does not properly remove references to destroyed objects during Shockwave Flash file processing, which allows remote attackers to execute arbitrary code via a crafted file, related to a "buffer overflow issue."

Exploit likelihood

28.5%Down 38.7 points since Feb 4, 2022

What each source reports

NVD Score used 9.3

Record: CVE-2009-0520
CVSS 2.0: 9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-0520
Updated: 2026-11-02

EUVDEUVD-2009-0524 No score

Record: EUVD-2009-0524
Updated: 2026-11-03

GitHub AdvisoriesGHSA-8fmr-hfvg-xqm4 No score

Adobe Flash Player 9.x before 9.0.159.0 and 10.x before 10.0.22.87 does not properly remove...

Record: GHSA-8fmr-hfvg-xqm4
Weakness: CWE-119
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`flash-plugin` Red Hat:rhel_extras:5::client From an advisory covering 3 CVEs	before 0:10.0.22.87-1.el5	0:10.0.22.87-1.el5
`flash-plugin` Red Hat:rhel_extras:5::server From an advisory covering 3 CVEs	before 0:10.0.22.87-1.el5	0:10.0.22.87-1.el5
`flash-plugin` Red Hat:rhel_extras:3 From an advisory covering 2 CVEs	before 0:9.0.159.0-1.el3.with.oss	0:9.0.159.0-1.el3.with.oss
`flash-plugin` Red Hat:rhel_extras:4 From an advisory covering 2 CVEs	before 0:9.0.159.0-1.el4	0:9.0.159.0-1.el4

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	Adobe Flash Player 9/10 - Invalid Object Reference Remote Code Execution	2009-02-24

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-2009-0520 is a high vulnerability (CVSS 9.3) in Adobe Flash Player, published February 26, 2009. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 28.5%, the 98th percentile. No source names a fixed version.

References

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