Cyber Resilience

CVE-2023-36434

Critical

Published: 10 October 2023

Published
10 October 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0248 85.6th percentile
Risk Priority 21 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-36434 is a critical-severity Improper Restriction of Excessive Authentication Attempts (CWE-307) vulnerability in Microsoft Windows 10 1607. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 14.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Windows IIS Server Elevation of Privilege Vulnerability

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

microsoft
windows 10 1507
≤ 10.0.10240.20232
microsoft
windows 10 1607
≤ 10.0.14393.6351 · ≤ 10.0.14393.6351
microsoft
windows 10 1809
≤ 10.0.17763.4974 · ≤ 10.0.17763.4974
microsoft
windows 10 21h2
≤ 10.0.19041.3570
microsoft
windows 10 22h2
≤ 10.0.19041.3570
microsoft
windows 11 21h2
≤ 10.0.22000.2538
microsoft
windows 11 22h2
≤ 10.0.22621.2428
microsoft
windows server 2008
all versions, r2
microsoft
windows server 2012
all versions, r2
microsoft
windows server 2016
all versions
+2 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-307

This control directly enforces limits on consecutive invalid logon attempts and automatic response (e.g., lockout) to prevent brute-force exploitation of authentication mechanisms.

addresses: CWE-307

Specific conditions can include excessive failed attempts, triggering stronger authentication that restricts brute-force exploitation.

References