CVE-2026-42914
Analyzed Analyzed - Analysis Complete

Kerberos Denial of Service in Windows

Publication date: 2026-06-09

Last updated on: 2026-06-11

Assigner: Microsoft Corporation

Description
Windows Kerberos Denial of Service Vulnerability

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-06-09
Last Modified
2026-06-11
Generated
2026-06-30
AI Q&A
2026-06-09
EPSS Evaluated
2026-06-28
NVD
CVE-2026-42914
EUVD
EUVD-2026-35726

Affected Vendors & Products

Showing 24 associated CPEs
Vendor Product Version / Range
microsoft windows_server_2012 r2
microsoft windows_server_2012 *
microsoft windows_10_1607 to 10.0.14393.9234 (exc)
microsoft windows_10_1607 to 10.0.14393.9234 (exc)
microsoft windows_10_1809 to 10.0.17763.8880 (exc)
microsoft windows_10_1809 to 10.0.17763.8880 (exc)
microsoft windows_10_21h2 to 10.0.19044.7417 (exc)
microsoft windows_10_21h2 to 10.0.19044.7417 (exc)
microsoft windows_10_21h2 to 10.0.19044.7417 (exc)
microsoft windows_10_22h2 to 10.0.19045.7417 (exc)
microsoft windows_10_22h2 to 10.0.19045.7417 (exc)
microsoft windows_10_22h2 to 10.0.19045.7417 (exc)
microsoft windows_11_23h2 to 10.0.22631.7219 (exc)
microsoft windows_11_23h2 to 10.0.22631.7219 (exc)
microsoft windows_11_24h2 to 10.0.26100.8655 (exc)
microsoft windows_11_24h2 to 10.0.26100.8655 (exc)
microsoft windows_11_25h2 to 10.0.26200.8655 (exc)
microsoft windows_11_25h2 to 10.0.26200.8655 (exc)
microsoft windows_11_26h1 to 10.0.28000.2269 (exc)
microsoft windows_11_26h1 to 10.0.28000.2269 (exc)
microsoft windows_server_2016 to 10.0.14393.9234 (exc)
microsoft windows_server_2019 to 10.0.17763.8880 (exc)
microsoft windows_server_2022 to 10.0.20348.5256 (exc)
microsoft windows_server_2025 to 10.0.26100.32995 (exc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

CVE-2026-42914 is a vulnerability in the Windows Kerberos authentication protocol that can lead to a Denial of Service (DoS) condition.

Impact Analysis

This vulnerability can cause a Denial of Service, meaning that affected Windows systems may become unavailable or unresponsive due to exploitation of this issue.

Mitigation Strategies

The vulnerability causes a Denial of Service with a maximum severity rated as Important.

To mitigate this vulnerability, it is recommended to apply any security updates or patches provided by Microsoft as soon as they become available.

Compliance Impact

This vulnerability causes a Denial of Service (DoS) condition in Windows Kerberos, which can impact system availability.

While the vulnerability does not directly affect confidentiality or integrity, the resulting service disruption could potentially impact compliance with standards and regulations that require system availability, such as GDPR and HIPAA.

However, there is no explicit information provided about direct compliance impacts in the available resources.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-42914. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart