CVE-2023-21687HighMicrosoft CVSS 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Microsoft security update for CVE-2023-21687 — Windows

Published
February 14, 2023
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2023-21687 →

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21687. This page also shows what EchelonGraph holds for CVE-2023-21687, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products6

  • Windows 11 Version 22H2 for ARM64-based Systems
  • Windows 11 Version 22H2 for x64-based Systems
  • Windows 11 version 21H2 for ARM64-based Systems
  • Windows 11 version 21H2 for x64-based Systems
  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)

✅ Updates Microsoft lists: 3 KB articles and 1 other update

4 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
KB5022842Security Update10.0.20348.1547
—Security Hotpatch Update10.0.20348.1540
KB5022836Security Update10.0.22621.1574
KB5022845Security Update10.0.22621.1265

🧭 EchelonGraph on CVE-2023-21687

EchelonGraph score
5.5 MEDIUM
CISA KEV
Not listed
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

HTTP.sys Information Disclosure Vulnerability

Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2023-21687, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (8)