How severe is CVE-2009-4324?

CVE-2009-4324 has a CVSS score of 7.8/10, rated HIGH. Immediate patching is strongly recommended.

Which products are affected by CVE-2009-4324?

Affected package information for CVE-2009-4324 is not yet fully mapped. Check the official advisory links for details.

How do I patch CVE-2009-4324?

Apply the adobe acrobat security patch or hotfix for CVE-2009-4324 on the affected version, following the vendor advisory for your exact build.

How do I detect CVE-2009-4324 across my infrastructure?

Inventory every adobe acrobat deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for remote code execution at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.

How do I mitigate CVE-2009-4324 if there is no patch (or I can't update yet)?

Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.

How does O3 Security protect against CVE-2009-4324?

O3 detects and blocks CVE-2009-4324 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Is CVE-2009-4324 actively exploited in the wild?

Yes. There are 8 known exploit references for CVE-2009-4324, including 3 documented proof-of-concept exploits on Exploit-DB and 5 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2009-4324?

CVE-2009-4324 has an EPSS (Exploit Prediction Scoring System) score of 81.8%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2009-4324 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2009-4324 (Adobe Acrobat and Reader Use-After-Free Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-06-08. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-06-22. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2009-4324?

CVE-2009-4324 is classified as Use After Free (CWE-416). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2009-4324?

CVE-2009-4324 affects adobe acrobat; adobe acrobat reader; opensuse opensuse (2 versions, e.g. 11.1, 11.2); suse linux enterprise (1 version, e.g. 10.0), and 1 more product(s). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2009-4324 published, and has it been updated?

CVE-2009-4324 was published on December 15, 2009 and was last updated on June 16, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2022-06-08 — agencies required to remediate by 2022-06-22

CVE-2009-4324

HIGH

Use-after-free vulnerability in the Doc.media.newPlayer method in Multimedia.api in Adobe Reader and Acrobat 9.x before 9.3, and 8.x before 8.2 on Windows and Mac OS X, allows remote…

Published

Dec 15, 2009

Updated

Jun 16, 2026

Affected

0 pkgs

Patched

None yet

Exploits

8 known

EPSS Exploitation Probability

via FIRST.org ↗

81.8%probability of exploitation in next 30 days

Very High Risk100th percentile-0.06%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

Use-after-free vulnerability in the Doc.media.newPlayer method in Multimedia.api in Adobe Reader and Acrobat 9.x before 9.3, and 8.x before 8.2 on Windows and Mac OS X, allows remote attackers to execute arbitrary code via a crafted PDF file using ZLib compressed streams, as exploited in the wild in December 2009.

Affected Products

5 products · 9 configurations

Application

acrobatadobe

≥ 9.0 && < 9.3

range

Application

acrobat readeradobe

≥ 9.0 && < 9.3

range

opensuseopensuse

2 versions

11.111.2

linux enterprisesuse

1 version

10.0

Application

linux enterprise debuginfosuse

1 version

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-16623localwindows✓ Verified

Adobe - 'Doc.media.newPlayer' Use-After-Free (Metasploit) (2)

by Metasploit · Sep 25, 2010

Exploit-DB Source

EDB-10618localwindows✓ Verified

Adobe Reader / Acrobat - '.PDF' File Overflow

by Ahmed Obied · Dec 23, 2009

Exploit-DB Source

EDB-16503localwindows✓ Verified

Adobe - 'Doc.media.newPlayer' Use-After-Free (Metasploit) (1)

by Metasploit · Apr 30, 2010

Exploit-DB Source

Detection & mitigation playbook

Vendor / appliance

Detect
Inventory every adobe acrobat deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for remote code execution at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.
Fix
Apply the adobe acrobat security patch or hotfix for CVE-2009-4324 on the affected version, following the vendor advisory for your exact build.
Workarounds
Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.
How O3 protects you
O3 detects and blocks CVE-2009-4324 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Tailored to CVE-2009-4324. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

O3 Security · Runtime Protection

Is CVE-2009-4324 being exploited in your environment?

O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2009-4324 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.

Protect my workloads How runtime protection works

CVE-2009-4324

EPSS Exploitation Probability

Description

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

How O3 protects you

Frequently Asked Questions

Is CVE-2009-4324 being exploited in your environment?