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Weekly Signal
Live intelligence Updated 20 Aug 2026 · 12:21 UTC

Adobe · Acrobat, Acrobat Reader, Reader and Acrobat

CVE-2011-2462

Adobe Reader and Acrobat Universal 3D Memory Corruption Vulnerability

Recommended action

Validate affected assets and exposure now, then remediate on an accelerated schedule. Adobe Security advisory Apsa11 04

View response plan
CVSS9.8
EPSS86.6%
KEVYes
ExploitationConfirmed exploitation
RemediationNot yet verified ↓

Assessment

Why it matters

CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 86.6%; technical severity is CVSS 9.8.

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.

Who should care

  • Teams operating Acrobat, Acrobat Reader, Reader and Acrobat
  • Vulnerability and exposure management teams
  • Security operations teams monitoring exploitation activity

Response plan

What I would do

  1. Confirm whether Acrobat, Acrobat Reader, Reader and Acrobat is present in the environment.
  2. Identify affected versions and establish whether vulnerable services are exposed or reachable.
  3. Adobe Security advisory Apsa11 04
  4. Review relevant security telemetry for evidence of attempted or successful exploitation.
  5. Document the remediation decision and track it to verified completion.

Treatment intelligence

Remediation intelligence

Not yet verified

Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.

Verification noteAutomated link verification has not completed for this guidance yet.

Advisory

Required Action

Technical details

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-787
Affected versions
Adobe Acrobat (End Including 10.1.1); Adobe Acrobat Reader (End Including 10.1.1 | Start Including 9.0, End Including 9.4.6); Adobe Reader and Acrobat
Fixed versions
No explicit fixed version is currently recorded.
Published
7 December 2011
Attack vector
Network
Privileges required
None
User interaction
None

Signal timeline

  1. CVE published
  2. Added to CISA KEV
  3. Latest EPSS score: 86.6%
  4. Signal calculated at 83

External references

Live public intelligence This assessment combines public-source evidence. Validate the affected product, version and exposure against your own environment before making a risk decision.