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Vulnerability record · CVE-2026-20849 · published 13 January 2026

CVE-2026-20849: Microsoft windows 10 1607 vulnerability

Microsoft · Windows 10 1607

Reliance on untrusted inputs in a security decision in Windows Kerberos allows an authorized attacker to elevate privileges over a network.

7.5 CVSS 3.1 High EPSS 1.0% · top 37.8% CWE-807 · CWE-807
7.5CVSS 3.1 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
14Affected product versions listed by NVD
1References
30 Jul 2026Last modified by NVD

Description

Reliance on untrusted inputs in a security decision in Windows Kerberos allows an authorized attacker to elevate privileges over a network.

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

Affected products

14 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20849 Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-20849), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.