All vulnerabilities
CVE-2021-21017

Adobe Acrobat and Reader Heap-based Buffer Overflow Vulnerability

Adobe Acrobat and ReaderApplications & CMS
Open in ThreatlineRecord JSON
CVSS
8.8High
ExploitationExploited in the wildAdded to KEV 3 Nov 2021CISA KEV
Exploit odds (EPSS)86.3%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline17 Nov 2021Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 11 Feb 2021, 19:42 UTCPublishedCVE List
  2. 3 Nov 2021Added to CISA KEVCISA KEV

Description

Acrobat Acrobat and Reader contain a heap-based buffer overflow vulnerability that could allow an unauthenticated attacker to achieve code execution in the context of the current user.

Text from CVE List

Affected versions 4

  • Acrobat Readeraffected: unspecified through 2020.013.20074CVE List
  • Acrobat Readeraffected: unspecified through 2020.001.30018CVE List
  • Acrobat Readeraffected: unspecified through 2017.011.30188CVE List
  • Acrobat Readeraffected: unspecified through NoneCVE List

References 3