CISA KEV · Known exploitedCritical

CVE-2015-5119

Adobe Flash Player

Use-after-free vulnerability in the ByteArray class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.296 and 14.x through 18.0.0.194 on Windows and OS X and 11.x through 11.2.202.468 on Linux allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that overrides a valueOf function, as exploited in the wild in July 2015.

CVSS: 9.8
EPSS: 99.3%
CISA KEV: Listed
Published: 2015.07.08

PRIORITY ASSESSMENT

Immediate review

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

Known exploitationConfirmed by CISA KEV

Exploit probability99.3%

Technical severityCVSS 9.8

Vulnerability overview

Affected product and versions

Product: Adobe Flash Player
Affected versions: >= 13.0.0.182 <= 13.0.0296, >= 14.0.0.125 <= 18.0.0.194, <= 11.2.202.468, 5.0, 6.0, 6.6, 11.4, 13.1, 13.2, 11, 12
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

The impacted product is end-of-life and should be disconnected if still in use.

Due date: 2022.03.24

1
Identify
Confirm that Adobe 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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-119, CWE-416
KEV added: 2022.03.03
Ransomware use: 미확인