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CISA KEV · ACTIVELY EXPLOITED
HIGH severity

CVE-2009-0927

HIGH

CVE-2009-0927 is a high-severity (CVSS 8.8) Improper Input Validation vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2022-03-25) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.

Stack-based buffer overflow in Adobe Reader and Adobe Acrobat 9 before 9.1, 8 before 8.1.3 , and 7 before 7.1.1 allows remote attackers to execute arbitrary code via a crafted argument…

Published
Updated
Affected
1 product
Patched
See advisory
Exploits
7 known
Exploitation data as of Oct 22, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

  • Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2022-03-25. Federal agencies were required to remediate by 2022-04-15.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2009-0927.

EPSS Exploitation Probability

via FIRST.org ↗
96.6%probability of exploitation in next 30 days
Very High Risk0.00%
Lower risk than most CVEs100th percentile — riskier than 100% of all scored CVEsHighest risk
92.3%94.1%95.9%97.6%93.3%96.6%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2009-0927 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).

Where this sits among everything scored

Of 395,249 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.

Description

Stack-based buffer overflow in Adobe Reader and Adobe Acrobat 9 before 9.1, 8 before 8.1.3 , and 7 before 7.1.1 allows remote attackers to execute arbitrary code via a crafted argument to the getIcon method of a Collab object, a different vulnerability than CVE-2009-0658.

Affected Products

1 product · 3 configurations
Application
acrobat readeradobe
≥ 9.0 && < 9.1
range
Exploits & PoCs
7

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

EDB-8595localwindows✓ Verified

Adobe Acrobat Reader 8.1.2 < 9.0 - 'getIcon()' Memory Corruption

by Abysssec · May 4, 2009

EDB-16606localwindows✓ Verified

Adobe - 'Collab.getIcon()' Local Buffer Overflow (Metasploit) (1)

by Metasploit · Apr 30, 2010

EDB-9579localwindows✓ Verified

Adobe Acrobat/Reader < 7.1.1/8.1.3/9.1 - Collab getIcon Universal

by kralor · Sep 3, 2009

EDB-16681localwindows✓ Verified

Adobe - 'Collab.getIcon()' Local Buffer Overflow (Metasploit) (2)

by Metasploit · Sep 25, 2010

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2009-0927 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Constrain what reaches the vulnerable code: limit the size and shape of untrusted input, isolate the affected component in a sandboxed or least-privileged process, and enable the platform's memory-safety mitigations (ASLR, stack protector, hardened allocator) so an out-of-bounds access is more likely to fail closed than to be exploitable.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatCritical
ProductFixed inAdvisory
Extras for RHEL 3acroread-0:8.1.3-1RHSA-2008:0974

Frequently Asked Questions

Stack-based buffer overflow in Adobe Reader and Adobe Acrobat 9 before 9.1, 8 before 8.1.3 , and 7 before 7.1.1 allows remote attackers to execute arbitrary code via a crafted argument to the getIcon method of a Collab object, a different vulnerability than CVE-2009-0658.
O3 Security · Impact-Aware SCA

Is CVE-2009-0927 in your dependencies?

Find it across , including transitive dependencies.

CVE-2009-0927: Memory Corruption (High 8.8, KEV)