CVE-2015-5119
Published: March 3, 2022
Official Description
A use-after-free vulnerability exists within the ActionScript 3 ByteArray class in Adobe Flash Player that allows an attacker to perform remote code execution.
CISA KEV Advisory
Adobe Flash Player Use-After-Free Vulnerability
A use-after-free vulnerability exists within the ActionScript 3 ByteArray class in Adobe Flash Player that allows an attacker to perform remote code execution.
The impacted product is end-of-life and should be disconnected if still in use.
Risk Analysis
A use-after-free vulnerability in Adobe Flash Player's ActionScript 3 ByteArray class allows attackers to achieve remote code execution. The very high EPSS score of 0.93212 suggests a high probability of exploitation, and its inclusion in CISA's KEV confirms active exploitation.
This vulnerability is actively exploited in the wild and is part of CISA's Known Exploited Vulnerabilities Catalog. Attackers are leveraging this flaw for remote code execution.
Update Adobe Flash Player to a patched version or, ideally, uninstall Flash Player if it is no longer required, as it is an end-of-life product.
Technical Analysis
CVE-2015-5119 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2015-5119 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2015-5119 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1