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CVE-2016-7855: Adobe Flash Player Use-After-Free Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-03-03
• EPSS: 25.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-11-01 · updated 2026-06-17
• Weakness: CWE-416

Description

Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and before 11.2.202.643 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in October 2016.

Affected products

• Adobe Flash Player 24.0.0.186 and earlier.: through 23.0.0.185; through 11.2.202.637
• RedHat Enterprise Linux Desktop: 5.0, 6.0
• RedHat Enterprise Linux Server: 5.0, 6.0
• RedHat Enterprise Linux Workstation: 5.0, 6.0

References

• http://rhn.redhat.com/errata/RHSA-2016-2119.html
• http://www.securityfocus.com/bid/93861
• http://www.securitytracker.com/id/1037111
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-128
• https://helpx.adobe.com/security/products/flash-player/apsb16-36.html
• https://security.gentoo.org/glsa/201610-10
• https://security.googleblog.com/2016/10/disclosing-vulnerabilities-to-protect.html
• http://rhn.redhat.com/errata/RHSA-2016-2119.html
• http://www.securityfocus.com/bid/93861
• http://www.securitytracker.com/id/1037111
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-128
• https://helpx.adobe.com/security/products/flash-player/apsb16-36.html

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