Adobe Flash Player versions 23.0.0.207 and earlier, 11.2.202.644 and earlier have an exploitable buffer overflow / underflow vulnerability in the RegExp class related to alternation functionality. Successful exploitation could lead to arbitrary code execution.
https://helpx.adobe.com/security/products/flash-player/apsb16-39.html
http://www.securityfocus.com/bid/94871
http://www.zerodayinitiative.com/advisories/ZDI-16-625
http://www.securitytracker.com/id/1037442
http://rhn.redhat.com/errata/RHSA-2016-2947.html
http://lists.opensuse.org/opensuse-updates/2016-12/msg00112.html
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00064.html
https://security.gentoo.org/glsa/201701-17
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-154
Source: MITRE
Published: 2016-12-15
Updated: 2022-11-16
Type: CWE-787
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8
Severity: HIGH