CVE-2016-4171
Published 2016-06-16 · Updated 2026-06-17 · Source psirt@adobe.com
Summary
CVE-2016-4171 is a critical-severity (CVSS 9.8) vulnerability in Adobe Flash Player. CISA added it to the Known Exploited Vulnerabilities catalog on March 25, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by April 15, 2022. CISA does not currently list it as used in ransomware campaigns. Adobe has 83 vulnerabilities in the KEV catalog, 11 of them linked to ransomware.
All 83 known-exploited Adobe vulnerabilities →Description
Unspecified vulnerability in Adobe Flash Player 21.0.0.242 and earlier allows remote attackers to execute arbitrary code via unknown vectors, as exploited in the wild in June 2016.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: Adobe — Flash Player
Name: Adobe Flash Player Remote Code Execution Vulnerability
Date added: 2022-03-25 · Due: 2022-04-15
Required action: The impacted product is end-of-life and should be disconnected if still in use.
References
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00031.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00035.html
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00038.html
- http://www.securityfocus.com/bid/91184
- http://www.securitytracker.com/id/1036094
- https://access.redhat.com/errata/RHSA-2016:1238
- https://helpx.adobe.com/security/products/flash-player/apsa16-03.html
- https://helpx.adobe.com/security/products/flash-player/apsb16-18.html

