CVE-2016-4117
Published: March 3, 2022
Official Description
An access of resource using incompatible type vulnerability exists within Adobe Flash Player that allows an attacker to perform remote code execution.
CISA KEV Advisory
Adobe Flash Player Arbitrary Code Execution Vulnerability
An access of resource using incompatible type vulnerability exists within 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
This vulnerability in Adobe Flash Player allows an attacker to execute arbitrary code remotely due to an incompatible type being used when accessing a resource. Given its high EPSS score of 0.93118, it is highly likely to be exploited, making it an urgent concern for systems still running Flash Player. This is further compounded by its inclusion in CISA's KEV catalog.
Active exploitation of this vulnerability has been observed in the wild, confirming its use by attackers. The nature of the flaw suggests it is remotely exploitable.
Adobe Flash Player is end-of-life and should be uninstalled immediately from all systems. If uninstallation is not feasible, ensure all instances are updated to the latest available secure version, though complete removal is the recommended action.
Technical Analysis
CVE-2016-4117 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-2016-4117 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-2016-4117 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