CVE-2016-7256
Published: May 25, 2022
Official Description
A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts. An attacker who successfully exploits this vulnerability could take control of the affected system.
CISA KEV Advisory
Microsoft Windows Open Type Font Remote Code Execution Vulnerability
A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts. An attacker who successfully exploits this vulnerability could take control of the affected system.
Apply updates per vendor instructions.
Risk Analysis
A critical remote code execution vulnerability exists in the Windows font library, where specially crafted embedded fonts can be mishandled, allowing an attacker to gain full control of the affected system. The high EPSS score of 0.65102 and confirmed in-the-wild exploitation underscore the urgency of addressing this flaw.
This vulnerability is actively exploited in the wild and is included in CISA's KEV catalog, confirming its use by threat actors. The nature of the flaw suggests it is remotely exploitable.
System administrators should apply the latest security patches for Windows to update the font library. Ensure all systems are kept up-to-date with Microsoft's security releases.
Technical Analysis
CVE-2016-7256 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-2016-7256 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-2016-7256 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