CVE-2015-5123
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.
Key facts
- CVSS score
- 9.8 (v3.1)
- Severity
- CRITICAL
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
- CWE-416
- EPSS score
- 18.8% (97th percentile)
- In CISA KEV
- Yes, added April 13, 2022
- In EU EUVD
- Yes (EUVD-2015-5138)
- Published
- July 14, 2015
- NVD last modified
- June 17, 2026
- Status
- Analyzed
CISA Known Exploited Vulnerability
Adobe Flash Player Use-After-Free Vulnerability
Added to the KEV catalog on April 13, 2022; federal remediation due May 4, 2022.
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2015-5138 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on November 17, 2025.
View on the EU Vulnerability DatabaseAffected products
- adobe / flash player
- adobe / flash player
- adobe / flash player
- adobe / flash player desktop runtime
- apple / macos
- linux / linux kernel
- microsoft / windows
- opensuse / evergreen
- redhat / enterprise linux desktop
- redhat / enterprise linux desktop
- redhat / enterprise linux server
- redhat / enterprise linux server
- redhat / enterprise linux server eus
- redhat / enterprise linux workstation
- redhat / enterprise linux workstation
- suse / linux enterprise desktop
- suse / linux enterprise desktop
- suse / linux enterprise desktop
- suse / linux enterprise workstation extension
Certified products that may be affected
1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.
- Red Hat Enterprise Linux 5 OpenSSH-Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 1384 - historical
References
- http://blog.trendmicro.com/trendlabs-security-intelligence/new-zero-day-vulnerability-cve-2015-5123-in-adobe-flash-emerges-from-hacking-team-leak/(Broken Link, Third Party Advisory)
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00028.html(Mailing List, Third Party Advisory)
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00029.html(Mailing List, Third Party Advisory)
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00032.html(Mailing List, Third Party Advisory)
- http://marc.info/?l=bugtraq&m=144050155601375&w=2(Mailing List, Third Party Advisory)
- http://rhn.redhat.com/errata/RHSA-2015-1235.html(Third Party Advisory)
- http://www.kb.cert.org/vuls/id/918568(Third Party Advisory, US Government Resource)
- http://www.securityfocus.com/bid/75710(Broken Link, Third Party Advisory, VDB Entry)
- http://www.securitytracker.com/id/1032890(Broken Link, Third Party Advisory, VDB Entry)
- http://www.us-cert.gov/ncas/alerts/TA15-195A(Third Party Advisory, US Government Resource)
- https://github.com/cisagov/vulnrichment/issues/196(Issue Tracking)
- https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04796784(Broken Link, Third Party Advisory)
- https://helpx.adobe.com/security/products/flash-player/apsa15-04.html(Broken Link, Vendor Advisory)
- https://helpx.adobe.com/security/products/flash-player/apsb15-18.html(Broken Link, Vendor Advisory)
- https://security.gentoo.org/glsa/201508-01(Third Party Advisory)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-5123(US Government Resource)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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