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CVE-2023-36046

21
FAUCET Score

CVE-2023-36046 is a Windows Authentication Denial of Service vulnerability affecting Windows 11 and Windows Server 2022. With a CVSS score of 7.1 (HIGH), it allows a local, low-privileged attacker to achieve a denial of service with low attack complexity, impacting system availability and integrity. There is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed in CISA's KEV catalog. While community discussion and media coverage are minimal, Microsoft addressed this flaw in their November 2023 Patch Tuesday.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.0.22000.2600CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:arm64:*
< 10.0.22000.2600CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:x64:*
< 10.0.22621.2715CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:arm64:*
< 10.0.22621.2715CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:x64:*
< 10.0.22621.2715CPE matchmatch criteria
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.69%
Probability of exploitation in next 30 days
EPSS Percentile
48.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0069 is in the 86th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Windows 11 version 21H2 for x64-based SystemsFixed in: 10.0.22000.2600
View patch
microsoftpatch availablevia msrc
Product: Windows 11 version 21H2 for ARM64-based SystemsFixed in: 10.0.22000.2600
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 22H2 for ARM64-based SystemsFixed in: 10.0.22621.2715
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 22H2 for x64-based SystemsFixed in: 10.0.22621.2715
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 23H2 for ARM64-based SystemsFixed in: 10.0.22631.2715
View patch
microsoftpatch availablevia msrc
Product: Windows 11 Version 23H2 for x64-based SystemsFixed in: 10.0.22631.2715
View patch
microsoftpatch availablevia msrc
Product: Windows Server 2022, 23H2 Edition (Server Core installation)Fixed in: 10.0.25398.531
View patch

Vendor Advisories (1)

microsoft2023-Nov/CVE-2023-36046Important

Windows Authentication Denial of Service Vulnerability

Nov 14, 2023

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2023-36046
PatchVendor Advisory