What is CVE-2011-2462?

CVE-2011-2462 is a critical-severity vulnerability in Adobe Acrobat, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2011-12-07.

How severe is CVE-2011-2462?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2011-2462 known to be exploited?

Yes. CVE-2011-2462 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-06-08), indicating it is being actively exploited. 9 public proof-of-concept repositories are indexed.

Buffer overflow in Adobe Acrobat

CVE-2011-2462

Unspecified vulnerability in the U3D component in Adobe Reader and Acrobat 10.1.1 and earlier on Windows and Mac OS X, and Adobe Reader 9.x through 9.4.6 on UNIX, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via unknown vectors, as exploited in the wild in December 2011.

Vulnerability class: Buffer Overflow

Published 2011-12-07 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.889 (99.8th percentile), scored 2026-10-16.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.866 · newest: 0.889 · change: +0.023

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-06-08. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-06-22.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

lists.opensuse.org/opensuse-security-announce/2012-01/msg00020.html (vendor-advisory, Broken Link)
www.adobe.com/support/security/bulletins/apsb12-01.html (Not Applicable)
www.adobe.com/support/security/advisories/apsa11-04.html (Vendor Advisory)
www.redhat.com/support/errata/RHSA-2012-0011.html (vendor-advisory, Broken Link)
lists.opensuse.org/opensuse-security-announce/2012-01/msg00019.html (vendor-advisory, Broken Link)
www.adobe.com/support/security/bulletins/apsb11-30.html (Not Applicable)
oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:14562 (Broken Link, signature, vdb-entry)
www.us-cert.gov/cas/techalerts/TA11-350A.html (US Government Resource, Third Party Advisory, third-party-advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (Issue Tracking)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2011-2462?: CVE-2011-2462 is a critical-severity vulnerability in Adobe Acrobat, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2011-12-07.
How severe is CVE-2011-2462?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2011-2462 known to be exploited?: Yes. CVE-2011-2462 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-06-08), indicating it is being actively exploited. 9 public proof-of-concept repositories are indexed.