CVE-2008-4820

CVE-2008-4820 is a high-severity vulnerability in Adobe Flash Player with a CVSS 2.0 base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

• Severity: High (CVSS 2.0 base score 7.1)
• EPSS exploit prediction: 5% (91st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-200
• Affected product: Adobe Flash Player
• Published: 2008-11-10
• Last modified: 2026-06-16

Description

Unspecified vulnerability in the Flash Player ActiveX control in Adobe Flash Player 9.0.124.0 and earlier on Windows allows attackers to obtain sensitive information via unknown vectors.

Frequently asked questions

What is CVE-2008-4820?

Unspecified vulnerability in the Flash Player ActiveX control in Adobe Flash Player 9.0.124.0 and earlier on Windows allows attackers to obtain sensitive information via unknown vectors.

How severe is CVE-2008-4820?

CVE-2008-4820 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2008-4820 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-4820?

CVE-2008-4820 primarily affects Adobe Flash Player. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-4820?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2008-4820 published?

CVE-2008-4820 was published on 2008-11-10 and last updated on 2026-06-16.

References

• http://lists.apple.com/archives/security-announce//2008//Dec/msg00000.html
• http://secunia.com/advisories/33179
• http://secunia.com/advisories/33390
• http://sunsolve.sun.com/search/document.do?assetkey=1-26-248586-1
• http://support.apple.com/kb/HT3338
• http://support.avaya.com/elmodocs2/security/ASA-2009-020.htm
• http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&DocumentOID=834256&poid=
• http://www.adobe.com/support/security/bulletins/apsb08-20.html
• http://www.securityfocus.com/bid/32129
• http://www.securitytracker.com/id?1021148
• http://www.us-cert.gov/cas/techalerts/TA08-350A.html
• http://www.vupen.com/english/advisories/2008/3444
• https://exchange.xforce.ibmcloud.com/vulnerabilities/46533

Affected products (20)

• cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:7.0.69.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:8.0.39.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.16:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.16:*:windows:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.18d60:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.20:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.20.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.28:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.28.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.28.0:*:mac_os_x:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.31:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.31.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.45.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.47.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.48.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.112.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.114.0:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:flash_player:9.0.115.0:*:*:*:*:*:*:*

More vulnerabilities in Adobe Flash Player

• CVE-2015-8459 — Critical (CVSS 10.0): Adobe Flash Player before 18.0.0.324 and 19.x and 20.x before 20.0.0.267 on Windows and OS X and before 11.2.202.559 on…
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• CVE-2015-8454 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Flash Player before 18.0.0.268 and 19.x and 20.x before 20.0.0.228 on Windows and…
• CVE-2015-8452 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Flash Player before 18.0.0.268 and 19.x and 20.x before 20.0.0.228 on Windows and…
• CVE-2015-8451 — Critical (CVSS 10.0): Adobe Flash Player before 18.0.0.268 and 19.x and 20.x before 20.0.0.228 on Windows and OS X and before 11.2.202.554 on…

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