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CVE-2009-0520

50
FAUCET Score

CVE-2009-0520 is a critical remote code execution vulnerability affecting Adobe Flash Player versions 9.x before 9.0.159.0 and 10.x before 10.0.22.87, as well as Adobe AIR and Flex. The flaw stems from improper handling of destroyed object references during Shockwave Flash file processing, leading to a buffer overflow. With a CVSS score of 9.3 (Critical) and a FAUCET Risk Score of 96/100, this vulnerability allows unauthenticated remote attackers to execute arbitrary code with medium attack complexity. While not listed in CISA's KEV catalog, exploit code is publicly available on ExploitDB, indicating a potential for exploitation despite limited community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.5CPE matchmatch criteria
cpe:2.3:a:adobe:air:1.5:*:*:*:*:*:*:*
<= 10.0.12.36CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:7.0:*:*:*:*:*:*:*
7.0.1CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:7.0.1:*:*:*:*:*:*:*
7.0.25CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:7.0.25:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
28.48%
Probability of exploitation in next 30 days
EPSS Percentile
97.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-32811 · Feb 24, 2009
This CVE's current EPSS score of 0.2848 is in the 92nd percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

adobepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Extras for RHEL 3Fixed in: flash-plugin-0:9.0.159.0-1.el3.with.oss
View patch
redhatpatch availablevia redhat_api
Product: Extras for RHEL 4Fixed in: flash-plugin-0:9.0.159.0-1.el4
View patch
redhatpatch availablevia redhat_api
Product: Supplementary for Red Hat Enterprise Linux 5Fixed in: flash-plugin-0:10.0.22.87-1.el5
View patch

Vendor Advisories (1)

redhatCVE-2009-0520Critical

flash-plugin: Buffer overflow (arbitrary code execution) via crafted SWF file.

Feb 24, 2009

References

isc.sans.org / diary.html
Patch
labs.idefense.com / intelligence/vulnerabilities/display.php
lists.apple.com / archives/security-announce/2009/May/msg00002.html
rhn.redhat.com / errata/RHSA-2009-0332.html
rhn.redhat.com / errata/RHSA-2009-0334.html
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/34012
secunia.com / advisories/34226
secunia.com / advisories/34293
secunia.com / advisories/35074
security.gentoo.org / glsa/glsa-200903-23.xml
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/48887
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16057
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6593
sunsolve.sun.com / search/document.do
support.apple.com / kb/HT3549
adobe.com / support/security/bulletins/apsb09-01.html
PatchVendor Advisory
securityfocus.com / bid/33880
Patch
us-cert.gov / cas/techalerts/TA09-133A.html
US Government Resource
vupen.com / english/advisories/2009/0513
Patch
vupen.com / english/advisories/2009/0743
vupen.com / english/advisories/2009/1297