CVE-2015-5122

Name: CVE-2015-5122
Creator: NVD / NIST
Published: 2015-07-14T10:59:00.213+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 93.69%

Last modified Jun 17, 2026

CVE-2015-5122 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Use-after-free vulnerability in the DisplayObject 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 leverages improper handling of the opaqueBackground property, as exploited in the wild in July 2015.. CISA has confirmed active exploitation in the wild. EPSS estimates a 93.69% chance of exploitation in the next 30 days.

Description

Use-after-free vulnerability in the DisplayObject 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 leverages improper handling of the opaqueBackground property, as exploited in the wild in July 2015.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

93.69%

99.8th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by May 4, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Adobe	Flash Player	>= 13.0, <= 13.0.0.302	—
Adobe	Flash Player	>= 18.0, <= 18.0.0.203	—
Adobe	Flash Player Desktop Runtime	>= 18.0, <= 18.0.0.203	—
Adobe	Flash Player	>= 18.0, <= 18.0.0.204	—
Adobe	Flash Player	>= 11.0, <= 11.2.202.481	—
Redhat	Enterprise Linux Desktop	5.0	—
Redhat	Enterprise Linux Desktop	6.0	—
Redhat	Enterprise Linux Server	5.0	—
Redhat	Enterprise Linux Server	6.0	—
Redhat	Enterprise Linux Server Eus	6.6	—
Redhat	Enterprise Linux Workstation	5.0	—
Redhat	Enterprise Linux Workstation	6.0	—
Opensuse	Evergreen	11.4	—
Suse	Linux Enterprise Desktop	11	Sp3
Suse	Linux Enterprise Desktop	12	—
Suse	Linux Enterprise Workstation Extension	12	—

References

http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00028.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00029.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00032.htmlMailing List, Third Party Advisory
http://marc.info/?l=bugtraq&m=144050155601375&w=2Mailing List, Third Party Advisory
http://packetstormsecurity.com/files/132663/Adobe-Flash-opaqueBackground-Use-After-Free.htmlExploit, Third Party Advisory, VDB Entry
http://rhn.redhat.com/errata/RHSA-2015-1235.htmlThird Party Advisory
http://www.kb.cert.org/vuls/id/338736Third Party Advisory, US Government Resource
http://www.rapid7.com/db/modules/exploit/multi/browser/adobe_flash_opaque_background_uafThird Party Advisory
http://www.securityfocus.com/bid/75712Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1032890Broken Link, Third Party Advisory, VDB Entry
http://www.us-cert.gov/ncas/alerts/TA15-195AThird Party Advisory, US Government Resource
https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04796784Broken Link, Third Party Advisory
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952467Third Party Advisory
https://helpx.adobe.com/security/products/flash-player/apsa15-04.htmlBroken Link, Vendor Advisory
https://helpx.adobe.com/security/products/flash-player/apsb15-18.htmlBroken Link, Vendor Advisory
https://perception-point.io/2018/04/11/breaking-cfi-cve-2015-5122-coop/Broken Link, Third Party Advisory
https://perception-point.io/new/breaking-cfi.phpBroken Link, Third Party Advisory
https://security.gentoo.org/glsa/201508-01Third Party Advisory
https://www.exploit-db.com/exploits/37599/Exploit, Third Party Advisory, VDB Entry
https://www.fireeye.com/blog/threat-research/2015/07/cve-2015-5122_-_seco.htmlBroken Link, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00028.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00029.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00032.htmlMailing List, Third Party Advisory
http://marc.info/?l=bugtraq&m=144050155601375&w=2Mailing List, Third Party Advisory
http://packetstormsecurity.com/files/132663/Adobe-Flash-opaqueBackground-Use-After-Free.htmlExploit, Third Party Advisory, VDB Entry
http://rhn.redhat.com/errata/RHSA-2015-1235.htmlThird Party Advisory
http://www.kb.cert.org/vuls/id/338736Third Party Advisory, US Government Resource
http://www.rapid7.com/db/modules/exploit/multi/browser/adobe_flash_opaque_background_uafThird Party Advisory
http://www.securityfocus.com/bid/75712Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1032890Broken Link, Third Party Advisory, VDB Entry
http://www.us-cert.gov/ncas/alerts/TA15-195AThird Party Advisory, US Government Resource
https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04796784Broken Link, Third Party Advisory
https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952467Third Party Advisory
https://helpx.adobe.com/security/products/flash-player/apsa15-04.htmlBroken Link, Vendor Advisory
https://helpx.adobe.com/security/products/flash-player/apsb15-18.htmlBroken Link, Vendor Advisory
https://perception-point.io/2018/04/11/breaking-cfi-cve-2015-5122-coop/Broken Link, Third Party Advisory
https://perception-point.io/new/breaking-cfi.phpBroken Link, Third Party Advisory
https://security.gentoo.org/glsa/201508-01Third Party Advisory
https://www.exploit-db.com/exploits/37599/Exploit, Third Party Advisory, VDB Entry
https://www.fireeye.com/blog/threat-research/2015/07/cve-2015-5122_-_seco.htmlBroken Link, Third Party Advisory
https://github.com/cisagov/vulnrichment/issues/196Issue Tracking
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-5122US Government Resource

Timeline

Published: Jul 14, 2015
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2015-5122?

How severe is CVE-2015-5122?

CVE-2015-5122 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 93.69% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2015-5122?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-5122?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST