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6.6

CVE-2024-20655: Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability

CVE-2024-20655 · published 2 years ago
Summary

Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
microsoft windows_server_2008 All versions
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*
microsoft windows_server_2012 r2
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
microsoft windows_server_2016 All versions
cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
microsoft windows_server_2019 All versions
cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
microsoft windows_server_2022 All versions
cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*
microsoft windows_server_2022_23h2 All versions
cpe:2.3:o:microsoft:windows_server_2022_23h2:-:*:*:*:*:*:*:*
Original advisory text
Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability
Microsoft Online Certificate Status Protocol (OCSP) Remote Code Execution Vulnerability
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
6.6 Medium
Exploitation
1% chance of attack within 30 days
Type
CWE-416Use After Free
Timeline
Published9 Jan 2024
Updated4 Nov 2026
First seen29 Sep 2026
Sources
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