CVE-2015-5123
CRITICALCISA KEVEPSS 97th pctlDescription
Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.302 on Windows and OS X, 14.x through 18.0.0.203 on Windows and OS X, 11.x through 11.2.202.481 on Linux, and 12.x through 18.0.0.204 on Linux Chrome installations 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 v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 97% of all known CVEs.
Adobe Flash Player Use-After-Free Vulnerability
Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player allows remote attackers to execute code or cause a denial-of-service (DoS).
The impacted product is end-of-life and should be disconnected if still in use.
Remediation due: 2022-05-04
References
- http://blog.trendmicro.com/trendlabs-security-intelligence/new-zero-day-vulnerability-cve-2015-5123-in-adobe-flash-emerges-from-hacking-team-leak/
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00028.html
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00029.html
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00032.html
- http://marc.info/?l=bugtraq&m=144050155601375&w=2
- http://rhn.redhat.com/errata/RHSA-2015-1235.html
- http://www.kb.cert.org/vuls/id/918568
- http://www.securityfocus.com/bid/75710
- http://www.securitytracker.com/id/1032890
- http://www.us-cert.gov/ncas/alerts/TA15-195A
- https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04796784
- https://helpx.adobe.com/security/products/flash-player/apsa15-04.html
- https://helpx.adobe.com/security/products/flash-player/apsb15-18.html
- https://security.gentoo.org/glsa/201508-01
- https://github.com/cisagov/vulnrichment/issues/196
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-5123
Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-21.