CVSS 10.0 CRITICAL Bulletin: APSB15-18 Published: 2015-07-10

CVE-2015-5122: Adobe Flash Player DisplayObject opaqueBackground Use-After-Free

Technical intelligence and weaponization dossier for CVE-2015-5122. Documented exploitation across 1 active malware families totaling 1,792 analyzed telemetry samples.

Attributed Families
1
Sample Volume
1,792
CVSS Vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
Official NIST NVD
View NVD Record →

Vulnerability Specifications & Root Cause

Vulnerability ID CVE-2015-5122
Common Name / Bulletin Adobe Flash Player DisplayObject opaqueBackground Use-After-Free (APSB15-18)
CWE Classification CWE-416: Use After Free in DisplayObject
Affected Software & Versions Adobe Flash Player 18.0.0.204 and earlier
Technical Root Cause Use-after-free triggered by setting opaqueBackground property during DisplayObject destruction in Flash, weaponized by Cerber ransomware.
Associated ATT&CK Techniques
  • T1189 — Associated ATT&CK Technique
  • T1204 — Associated ATT&CK Technique

Malware Families Weaponizing CVE-2015-5122

Empirical catalog telemetry verifies that the following 1 malware families weaponize this vulnerability for initial access, privilege escalation, or lateral movement:

1 families
Malware Family Category Catalog Samples Operational Profile
cerberRansomware1,792Cerber is an influential, early Ransomware-as-a-Service (RaaS) operation that operated with immense commercial success between February 2016 and late 2017. Deve...

SOC Detection & Threat Hunting Guidance

Threat hunting leads and behavioral telemetry patterns to identify weaponized exploitation of CVE-2015-5122 in enterprise networks:

Flash objects manipulating DisplayObject opaqueBackground properties in rapidly looping timer callbacks.

Remediation & Defensive Hardening

SOC containment checklist and attack surface reduction measures to neutralize exploitation:

Actionable Guidance: Decommission Adobe Flash Player software across all assets.

For end-to-end incident response procedures, consult our dedicated playbook: Ransomware Containment & Incident Response →

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