Adobe · Flash Player
CVE-2015-5123
Adobe Flash Player Use-After-Free Vulnerability
CISA KEV record
- CISA date added
- 2022-04-13
- CISA due date
- 2022-05-04
- Known ransomware use
- Unknown
NVD risk context
9.8 CRITICAL
CVSS is a technical severity score. CISA’s KEV status remains the evidence that this vulnerability is known to be exploited.
Description
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).
Required action
The impacted product is end-of-life and should be disconnected if still in use.
NVD reference index
Vendor and remediation references
NVD has tagged these sources as vendor advisories, patches, mitigations, or release notes.
- https://helpx.adobe.com/security/products/flash-player/apsa15-04.html ↗
- https://helpx.adobe.com/security/products/flash-player/apsb15-18.html ↗
Other NVD references (14)
- 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://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 ↗
MITRE CWE context
CWE classification
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
View official MITRE CWE details ↗NVD record timing
NVD record timeline
These dates describe NVD’s record, not CISA’s KEV addition or remediation due date.
- NVD published
- Jul 14, 2015, 10:59 AM UTC When NVD first published this CVE record.
- NVD last updated
- Jun 17, 2026, 12:28 AM UTC When NVD last changed its analysis or record data.
Advanced: view the technical CVSS vector
This standardized code is intended for security tools and technical analysts. The plain-language risk summary above explains its main points.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2015-5123