Actively exploited · Published Mar 9, 2016 · Assigned by microsoft
CVE-2016-0099
High 7.8 Exploited Ransomware
In plain English
A high-severity buffer overflow in Windows from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on March 3, 2022). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 37.0% (higher than 99% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, public proof-of-concept code. Apply updates per vendor instructions.
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by Mar 24, 2022.
Official description
The Secondary Logon Service in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 does not properly process request handles, which allows local users to gain privileges via a crafted application, aka "Secondary Logon Elevation of Privilege Vulnerability."
Affected products (as reported)
Weakness: CWE-120 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- 40107 exploit, x_refsource_EXPLOIT-DB
- 39719 exploit, x_refsource_EXPLOIT-DB
- 39809 exploit, x_refsource_EXPLOIT-DB
- 84034 vdb-entry, x_refsource_BID
- 1035210 vdb-entry, x_refsource_SECTRACK
- MS16-032 vendor-advisory, x_refsource_MS
- 39574 exploit, x_refsource_EXPLOIT-DB
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-0099 government-resource