What’s Vulnerable › Vulnerabilities

CVE-2016-4121

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 10.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-06-16 · updated 2026-06-17
• Weakness: CWE-416

Description

Use-after-free vulnerability in Adobe Flash Player before 18.0.0.352 and 19.x through 21.x before 21.0.0.242 on Windows and OS X and before 11.2.202.621 on Linux allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2016-1097, CVE-2016-1106, CVE-2016-1107, CVE-2016-1108, CVE-2016-1109, CVE-2016-1110, CVE-2016-4108, and CVE-2016-4110.

Affected products

• Adobe Air Desktop Runtime: through 21.0.0.198
• Adobe Air Sdk: through 21.0.0.198
• Adobe Air Sdk & Compiler: through 21.0.0.198
• Adobe Flash Player 24.0.0.186 and earlier.: through 21.0.0.241; through 18.0.0.343; through 11.2.202.616; through 21.0.0.216
• Adobe Flash Player Desktop Runtime: through 21.0.0.226

References

• http://rhn.redhat.com/errata/RHSA-2016-1079.html
• http://www.securityfocus.com/bid/90797
• https://helpx.adobe.com/security/products/flash-player/apsb16-15.html
• https://security.gentoo.org/glsa/201606-08
• http://rhn.redhat.com/errata/RHSA-2016-1079.html
• http://www.securityfocus.com/bid/90797
• https://helpx.adobe.com/security/products/flash-player/apsb16-15.html
• https://security.gentoo.org/glsa/201606-08

Get alerted when CVE-2016-4121 or the next vulnerability affects your stack