CISA KEV · Known exploitedHigh

CVE-2009-1862

Adobe Acrobat and Reader, Flash Player

Unspecified vulnerability in Adobe Reader and Acrobat 9.x through 9.1.2, and Adobe Flash Player 9.x through 9.0.159.0 and 10.x through 10.0.22.87, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via (1) a crafted Flash application in a .pdf file or (2) a crafted .swf file, related to authplay.dll, as exploited in the wild in July 2009.

CVSS: 7.8
EPSS: 25.0%
CISA KEV: Listed
Published: 2009.07.24

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability25.0%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Adobe Acrobat and Reader, Flash Player
Affected versions: >= 9.0 <= 9.1.2, >= 9.0 <= 9.0.159.0, >= 10.0 <= 10.0.22.87
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

For Adobe Acrobat and Reader, apply updates per vendor instructions. For Adobe Flash Player, the impacted product is end-of-life and should be disconnected if still in use.

Due date: 2022.06.22

1
Identify
Confirm that Adobe Acrobat and Reader, Flash Player and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE: CWE-787, CWE-94
KEV added: 2022.06.08
Ransomware use: 미확인