CVE-2016-5195
Published: March 3, 2022
Official Description
Race condition in mm/gup.c in the Linux kernel allows local users to escalate privileges.
CISA KEV Advisory
Linux Kernel Race Condition Vulnerability
Race condition in mm/gup.c in the Linux kernel allows local users to escalate privileges.
Apply updates per vendor instructions.
Risk Analysis
A race condition in the Linux kernel's mm/gup.c allows local users to escalate privileges. The high EPSS score of 0.94176 indicates a very high likelihood of exploitation, making this a critical vulnerability. CISA has confirmed this vulnerability is actively exploited.
This vulnerability is actively exploited in the wild and is included in CISA's KEV catalog. While local, successful exploitation can lead to significant privilege escalation.
Apply the latest kernel updates for affected Linux distributions. Implement strong user access controls and minimize the number of local users with shell access.
Technical Analysis
CVE-2016-5195 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-2016-5195 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-2016-5195 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