Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2023-21697

CVE-2023-21697MEDIUM

Microsoft Windows 10 Version 1507 — Windows Internet Storage Name Service (iSNS) Server Information Disclosure Vulnerability

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  H  N  N    5.5   .0050   40.5     —

AFFECTED
  Product                                                           Versions        Fixed
  Windows 10 Version 1507                                           10.0.10240.0 –  —
  Windows 10 Version 1607                                           10.0.14393.0 –  —
  Windows 10 Version 1809                                           10.0.17763.0 –  —
  Windows 10 Version 1809                                           10.0.0 –        —
  Windows 10 Version 20H2                                           10.0.0 –        —
  Windows 10 Version 21H2                                           10.0.19043.0 –  —
  Windows 10 Version 22H2                                           10.0.19045.0 –  —
  Windows Server 2008  Service Pack 2                               6.0.6003.0 –    —
  Windows Server 2008 R2 Service Pack 1                             6.1.7601.0 –    —
  Windows Server 2008 R2 Service Pack 1 (Server Core installation)  6.1.7601.0 –    —
  + 10 more

TIMELINE
  Dec 13  Reserved by microsoft
  Feb 14  Published (CNA: microsoft)
  Aug 19  RESCORED — CVE-2023-21697 (Microsoft Windows 10 Version 1507). CVSS 6.2 → 5.5 (NVD).

CWE-126 · CNA: microsoft · CVSS v3.1 · 1 reference · NVD status: Modified

Description

Windows Internet Storage Name Service (iSNS) Server Information Disclosure Vulnerability

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
December 13, 2022	Reserved	Reserved by microsoft
February 14, 2023	Published	Published (CNA: microsoft)
August 19, 2026	RESCORED	RESCORED — CVE-2023-21697 (Microsoft Windows 10 Version 1507). CVSS 6.2 → 5.5 (NVD).

Affected

Affected products and packages — 20 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Microsoft	Windows 10 Version 1507	—	10.0.10240.0	—
Microsoft	Windows 10 Version 1607	—	10.0.14393.0	—
Microsoft	Windows 10 Version 1809	—	10.0.17763.0	—
Microsoft	Windows 10 Version 1809	—	10.0.0	—
Microsoft	Windows 10 Version 20H2	—	10.0.0	—
Microsoft	Windows 10 Version 21H2	—	10.0.19043.0	—
Microsoft	Windows 10 Version 22H2	—	10.0.19045.0	—
Microsoft	Windows Server 2008 Service Pack 2	—	6.0.6003.0	—
Microsoft	Windows Server 2008 R2 Service Pack 1	—	6.1.7601.0	—
Microsoft	Windows Server 2008 R2 Service Pack 1 (Server Core installation)	—	6.1.7601.0	—
Microsoft	Windows Server 2008 Service Pack 2	—	6.0.6003.0	—
Microsoft	Windows Server 2008 Service Pack 2 (Server Core installation)	—	6.0.6003.0	—
Microsoft	Windows Server 2012	—	6.2.9200.0	—
Microsoft	Windows Server 2012 (Server Core installation)	—	6.2.9200.0	—
Microsoft	Windows Server 2012 R2	—	6.3.9600.0	—
Microsoft	Windows Server 2012 R2 (Server Core installation)	—	6.3.9600.0	—
Microsoft	Windows Server 2016	—	10.0.14393.0	—
Microsoft	Windows Server 2016 (Server Core installation)	—	10.0.14393.0	—
Microsoft	Windows Server 2019	—	10.0.17763.0	—
Microsoft	Windows Server 2019 (Server Core installation)	—	10.0.17763.0	—

Weaknesses

CWE-126

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21697 [Patch, Vendor Advisory]

Authoritative record: CVE-2023-21697 at cve.org

Vendors: microsoft

Weaknesses: CWE-126

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-21697 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.