CVE-2023-21674
Microsoft Windows Advanced Local Procedure Call (ALPC) Privilege Escalation Vulnerability
CVSS
—
No CVSS
EPSS
41.8%
p99
KEV
YES
Jan 10, 2023
Exploit Today
80
0-100
Published: — · Last modified: —
41.5%EPSS · 30 days41.8%
2026-06-302026-07-16
Product
Microsoft / Windows
Vulnerability
Microsoft Windows Advanced Local Procedure Call (ALPC) Privilege Escalation Vulnerability
Added to KEV
Jan 10, 2023
Remediate by
Jan 31, 2023
Known ransomware use
No
Summary description
Microsoft Windows Advanced Local Procedure Call (ALPC) contains an unspecified vulnerability that allows for privilege escalation.
Required action
Apply updates per vendor instructions.
Notes
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-21674; https://nvd.nist.gov/vuln/detail/CVE-2023-21674
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