How severe is CVE-2009-0521?

CVE-2009-0521 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2009-0521 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0521?

CVE-2009-0521 primarily affects Adobe Flash Player For Linux. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-0521?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-0521 published?

CVE-2009-0521 was published on 2009-02-26 and last updated on 2026-06-16.

CVE-2009-0521

CVE-2009-0521 is a medium-severity vulnerability in Adobe Flash Player For Linux with a CVSS 2.0 base score of 4.6. 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: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Adobe Flash Player For Linux
Published: 2009-02-26
Last modified: 2026-06-16

Description

Untrusted search path vulnerability in Adobe Flash Player 9.x before 9.0.159.0 and 10.x before 10.0.22.87 on Linux allows local users to obtain sensitive information or gain privileges via a crafted library in a directory contained in the RPATH.

Frequently asked questions

What is CVE-2009-0521?: Untrusted search path vulnerability in Adobe Flash Player 9.x before 9.0.159.0 and 10.x before 10.0.22.87 on Linux allows local users to obtain sensitive information or gain privileges via a crafted library in a directory contained in the RPATH.
How severe is CVE-2009-0521?: CVE-2009-0521 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2009-0521 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0521?: CVE-2009-0521 primarily affects Adobe Flash Player For Linux. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-0521?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-0521 published?: CVE-2009-0521 was published on 2009-02-26 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:adobe:flash_player_for_linux:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:flash_player_for_linux:10.0.12.36:*:*:*:*:*:*:*

More vulnerabilities in Adobe Flash Player For Linux

CVE-2016-0959 — Critical (CVSS 9.8): Use after free vulnerability in Adobe Flash Player Desktop Runtime before 20.0.0.267, Adobe Flash Player Extended…
CVE-2010-2216 — Critical (CVSS 9.3): Adobe Flash Player before 9.0.280 and 10.x before 10.1.82.76, and Adobe AIR before 2.0.3, allows attackers to execute…
CVE-2010-2214 — Critical (CVSS 9.3): Adobe Flash Player before 9.0.280 and 10.x before 10.1.82.76, and Adobe AIR before 2.0.3, allows attackers to execute…
CVE-2010-2213 — Critical (CVSS 9.3): Adobe Flash Player before 9.0.280 and 10.x before 10.1.82.76, and Adobe AIR before 2.0.3, allows attackers to execute…
CVE-2010-0209 — Critical (CVSS 9.3): Adobe Flash Player before 9.0.280 and 10.x before 10.1.82.76, and Adobe AIR before 2.0.3, allows attackers to execute…
CVE-2009-0520 — Critical (CVSS 9.3): 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…

All CVEs affecting Adobe Flash Player For Linux →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →