CVE-2008-3873

The System.setClipboard method in ActionScript in Adobe Flash Player 9.0.124.0 and earlier allows...

4.3 MediumFix available

The System.setClipboard method in ActionScript in Adobe Flash Player 9.0.124.0 and earlier allows remote attackers to populate the clipboard with a URL that is difficult to delete and does not require user interaction to populate the clipboard, as exploited in the wild in August 2008.

Exploit likelihood

17.0%Up 13.0 points since Feb 4, 2022

What each source reports

NVD Score used 4.3

Record: CVE-2008-3873
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2008-3873
Updated: 2026-11-02

EUVDEUVD-2008-3859 No score

Record: EUVD-2008-3859
Updated: 2026-11-03

GitHub AdvisoriesGHSA-2m26-jxg5-74r8 No score

The System.setClipboard method in ActionScript in Adobe Flash Player 9.0.124.0 and earlier allows...

Record: GHSA-2m26-jxg5-74r8
Updated: 2026-11-02

Affected products

adobe flash player

Affected packages

Affected packages
Package	Affected	Fixed
`flash-plugin` Red Hat:rhel_extras:5::client	before 0:10.0.12.36-2.el5	0:10.0.12.36-2.el5
`flash-plugin` Red Hat:rhel_extras:5::server	before 0:10.0.12.36-2.el5	0:10.0.12.36-2.el5
`flash-plugin` Red Hat:rhel_extras:3	before 0:9.0.151.0-1.el3.with.oss	0:9.0.151.0-1.el3.with.oss
`flash-plugin` Red Hat:rhel_extras:4	before 0:9.0.151.0-1.el4	0:9.0.151.0-1.el4

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2008-3873 is a medium vulnerability (CVSS 4.3) in Adobe Flash Player, published August 29, 2008. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 17.0%, the 97th percentile. Fixed in flash-plugin 0:10.0.12.36-2.el5.

References

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