What is CVE-2015-5123?

CVE-2015-5123 is a critical-severity vulnerability in Adobe Flash_player, classified under Use After Free. CVSS score: 9.8/10. Published 2015-07-14.

How severe is CVE-2015-5123?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2015-5123 known to be exploited?

Yes. CVE-2015-5123 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-13), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.

Use After Free in Adobe Flash_player

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 Li…

Vulnerability class: Use-After-Free

EPSS: 0.185 (96.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Adobe Flash_player
Adobe Flash_player_desktop_runtime
Apple Macos
Linux Linux_kernel
Microsoft Windows
Opensuse Evergreen — versions 11.4
Redhat Enterprise_linux_desktop — versions 5.0, 6.0
Redhat Enterprise_linux_server — versions 5.0, 6.0
Redhat Enterprise_linux_server_eus — versions 6.6
Redhat Enterprise_linux_workstation — versions 5.0, 6.0

Weakness classification (CWE)

CWE-416 — Use After Free

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-04-13. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-05-04.

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

Public proof-of-concept exploits

References

psirt@adobe.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK, Broken Link)
psirt@adobe.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
psirt@adobe.com (Third Party Advisory, x_refsource_MISC, Broken Link)
psirt@adobe.com (x_refsource_HP, vendor-advisory, Mailing List, Third Party Advisory)
psirt@adobe.com (US Government Resource, Third Party Advisory, x_refsource_CERT, third-party-advisory)
psirt@adobe.com (x_refsource_CONFIRM, Broken Link, Vendor Advisory)
psirt@adobe.com (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, third-party-advisory)
psirt@adobe.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
psirt@adobe.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
psirt@adobe.com (x_refsource_HP, vendor-advisory, Third Party Advisory, Broken Link)

Frequently asked questions

What is CVE-2015-5123?: CVE-2015-5123 is a critical-severity vulnerability in Adobe Flash_player, classified under Use After Free. CVSS score: 9.8/10. Published 2015-07-14.
How severe is CVE-2015-5123?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2015-5123 known to be exploited?: Yes. CVE-2015-5123 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-13), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.