CVE-2008-3873

CVE-2008-3873 is a medium-severity vulnerability in Adobe Flash Player with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

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.

Frequently asked questions

What is CVE-2008-3873?
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.
How severe is CVE-2008-3873?
CVE-2008-3873 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2008-3873 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-3873?
CVE-2008-3873 affects Adobe Flash Player. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-3873?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-3873 published?
CVE-2008-3873 was published on 2008-08-29 and last updated on 2026-06-16.

References

Affected products (1)

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