MSRC_CVE-2026-20833
Vulnerability from csaf_microsoft - Published: 2026-01-13 08:00 - Updated: 2026-01-13 08:00Summary
Windows Kerberos Information Disclosure Vulnerability
Severity
Important
Notes
Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
Customer Action: Required. The vulnerability documented by this CVE requires customer action to resolve.
CWE-327
- Use of a Broken or Risky Cryptographic Algorithm
Vendor Fix
10.0.17763.8276:Security Update:https://support.microsoft.com/help/5073723
https://support.microsoft.com/help/5073723
Vendor Fix
10.0.20348.4648:Security Update:https://support.microsoft.com/help/5073457
https://support.microsoft.com/help/5073457
Vendor Fix
10.0.26100.32230:Security Update:https://support.microsoft.com/en-us/topic/a6021fd2-b3b7-45a7-b68e-35c28a2a77da
https://support.microsoft.com/en-us/topic/a6021fd…
Vendor Fix
10.0.25398.2092:Security Update:https://support.microsoft.com/help/5073450
https://support.microsoft.com/help/5073450
Vendor Fix
10.0.14393.8783:Security Update:https://support.microsoft.com/help/5073722
https://support.microsoft.com/help/5073722
Vendor Fix
6.0.6003.23717:Monthly Rollup:https://support.microsoft.com/help/5073697
https://support.microsoft.com/help/5073697
Vendor Fix
6.0.6003.23717:Security Only:https://support.microsoft.com/help/5073700
https://support.microsoft.com/help/5073700
Vendor Fix
6.1.7601.28117:Monthly Rollup:https://support.microsoft.com/help/5073695
https://support.microsoft.com/help/5073695
Vendor Fix
6.1.7601.28117:Security Only:https://support.microsoft.com/help/5073699
https://support.microsoft.com/help/5073699
Vendor Fix
6.2.9200.25868:Monthly Rollup:https://support.microsoft.com/help/5073698
https://support.microsoft.com/help/5073698
Vendor Fix
6.3.9600.22968:Monthly Rollup:https://support.microsoft.com/help/5073696
https://support.microsoft.com/help/5073696
References
Acknowledgments
Windows Authentication Platform team
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"environmentalsScore": 0.0,
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"privilegesRequired": "LOW",
"remediationLevel": "OFFICIAL_FIX",
"reportConfidence": "CONFIRMED",
"scope": "UNCHANGED",
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"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C",
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"threats": [
{
"category": "impact",
"details": "Information Disclosure"
},
{
"category": "exploit_status",
"details": "Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely"
}
],
"title": "Windows Kerberos Information Disclosure Vulnerability"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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