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CVE-2016-3309: Microsoft Windows Kernel Privilege Escalation Vulnerability

criticalknown exploitedpublic exploitCVE-2016-3309
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 when the Windows kernel fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode.

CSIRTS triage

vendor: Microsoftproduct: WindowsPrivilege escalation
What
A privilege escalation vulnerability exists when the Windows kernel fails to properly handle objects in memory.
Who is affected
All deployments of Windows using the affected kernel.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Apply the latest security patch from Microsoft.

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
2022-03-15
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2016-3309

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-2016-3309coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Windows Kernel

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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