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CVE-2016-0099: Microsoft Windows Secondary Logon Service Privilege Escalation Vulnerability

criticalknown exploitedpublic exploitCVE-2016-0099
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
A privilege escalation vulnerability exists in Microsoft Windows if the Windows Secondary Logon Service fails to properly manage request handles in memory. An attacker who successfully exploited this vulnerability could run arbitrary code as an administrator.

CSIRTS triage

vendor: Microsoftproduct: WindowsPrivilege escalation
What
A privilege escalation vulnerability exists due to improper management of request handles in memory.
Who is affected
Users of Microsoft Windows with the affected service running.
Urgency
Remediation is critical as the vulnerability is actively exploited and can allow administrative code execution.
Action
Install the latest security updates for Windows.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-03-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2016-0099

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2016-0099coverage & exploitation statusNVD · CVE.org

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