CVE-2016-3715
Published: November 3, 2021
Official Description
ImageMagick contains an unspecified vulnerability that could allow users to delete files by using ImageMagick's 'ephemeral' pseudo protocol, which deletes files after reading.
CISA KEV Advisory
ImageMagick Arbitrary File Deletion Vulnerability
ImageMagick contains an unspecified vulnerability that could allow users to delete files by using ImageMagick's 'ephemeral' pseudo protocol, which deletes files after reading.
Apply updates per vendor instructions.
Risk Analysis
ImageMagick has an unspecified vulnerability that allows users to delete files using its 'ephemeral' pseudo protocol. This is a high-severity flaw with an EPSS score of 0.77733, indicating a high likelihood of exploitation, and it is confirmed to be exploited in the wild.
This vulnerability has been actively exploited in the wild and is included in CISA's Known Exploited Vulnerabilities Catalog. The nature of the flaw suggests it can be triggered by processing malicious image files.
Users of ImageMagick should update to the latest secure version to patch this vulnerability. Implement robust input validation and restrict ImageMagick's capabilities where possible to prevent unintended file operations.
Technical Analysis
CVE-2016-3715 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-2016-3715 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.
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-3715 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