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CVE-2015-1701: Microsoft Win32k Privilege Escalation Vulnerability

criticalknown exploitedpublic exploitCVE-2015-1701
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.
An unspecified vulnerability exists in the Win32k.sys kernel-mode driver in Microsoft Windows Server that allows a local attacker to execute arbitrary code with elevated privileges.

CSIRTS triage

vendor: Microsoftproduct: Windows ServerPrivilege escalation
What
A vulnerability in the Win32k.sys kernel-mode driver allows local attackers to execute arbitrary code with elevated privileges.
Who is affected
Local attackers on Microsoft Windows Server are affected.
Urgency
Remediation is critical due to the high severity and active exploitation.
Action
Apply the latest security updates for Microsoft Windows Server.

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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-2015-1701

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-2015-1701coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Win32k Privilege

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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