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CVE-2026-44810: Microsoft Cryptographic Services Elevation of Privilege Vulnerability

highCVSS 8.4CVE-2026-44810
Improper authentication in Windows Cryptographic Services allows an unauthorized attacker to elevate privileges locally.

CSIRTS triage

What
Improper authentication allows unauthorized privilege elevation.
Who is affected
Users of Windows Cryptographic Services are affected.
Urgency
Remediation is urgent due to the high severity rating and potential for exploitation.
Action
Patch Windows Cryptographic Services immediately.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 8.4
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44810

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-2026-44810coverage & exploitation statusNVD · CVE.org

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