ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2015-5123

Adobe Flash Player Use-After-Free Vulnerability

Published Jul 5, 2015 · catalog updated Jun 16, 2026 · Adobe Flash Player

Patch now

CVE-2015-5123 is in the CISA known-exploited catalog, due May 4, 2022. Confirm Adobe Flash Player against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
18.83%
Remediation
Remediation guidance
Affected products
cpe adobe/flash player · cpe opensuse/evergreen · cpe redhat/enterprise linux desktop · cpe redhat/enterprise linux server · cpe redhat/enterprise linux server eus · cpe redhat/enterprise linux workstation

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe adobe/flash playerversion unspecified
  • cpe opensuse/evergreen11.4
  • cpe redhat/enterprise linux desktop5.0
  • cpe redhat/enterprise linux desktop6.0
  • cpe redhat/enterprise linux server5.0
  • cpe redhat/enterprise linux server6.0
  • cpe redhat/enterprise linux server eus6.6
  • cpe redhat/enterprise linux workstation5.0
  • cpe redhat/enterprise linux workstation6.0
  • cpe suse/linux enterprise desktop11
  • cpe suse/linux enterprise desktop12
  • cpe suse/linux enterprise workstation extension12
  • vendor Adobe Flash Playerversion unspecified

How to fix CVE-2015-5123

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2015-5123 is in the CISA known-exploited catalog, due May 4, 2022. Confirm Adobe Flash Player against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with redhat/enterprise linux desktop 5.0; redhat/enterprise linux desktop 6.0; redhat/enterprise linux server 5.0; redhat/enterprise linux server 6.0. The impacted product is end-of-life and should be disconnected if still in use.

What should an analyst verify?

CWE-416: Use After Free. EPSS 18.83%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 14, 2015 · Catalog

    Detected

    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)

  2. Apr 13, 2022 · CISA KEV

    Known exploited

    The impacted product is end-of-life and should be disconnected if still in use.

  3. May 4, 2022 · CISA KEV

    Remediation due

    The impacted product is end-of-life and should be disconnected if still in use.

  4. Jun 16, 2026 · Catalog

    Updated

    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)

Sources

  • Apple Security ReleasesVendor advisoryCVE-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)

    nvd.nist.gov
  • CISA KEVConfirmed exploitationCVE-2015-5123

    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).

    cisa.gov
  • CVE.orgVulnerability recordCVE-2015-5123

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2015-5123

    30-day exploitation probability 18.8%

    first.org
  • NIST NVDVulnerability recordCVE-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

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2015-5123

    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).

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.