CVE-2026-20872
NTLM Hash Disclosure Spoofing Vulnerability
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track*
*SSVC
Descriptions
External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track*
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2025-12-03 CVE Reserved
- 2026-01-13 CVE Published
- 2026-04-01 CVE Updated
- 2026-05-15 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-73: External Control of File Name or Path
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20872 | 2026-01-14 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Microsoft Search vendor "Microsoft" | Windows 10 Version 1607 Search vendor "Microsoft" for product "Windows 10 Version 1607" | >= 10.0.14393.0 < 10.0.14393.8783 Search vendor "Microsoft" for product "Windows 10 Version 1607" and version " >= 10.0.14393.0 < 10.0.14393.8783" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 Version 1809 Search vendor "Microsoft" for product "Windows 10 Version 1809" | >= 10.0.17763.0 < 10.0.17763.8276 Search vendor "Microsoft" for product "Windows 10 Version 1809" and version " >= 10.0.17763.0 < 10.0.17763.8276" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 Version 21H2 Search vendor "Microsoft" for product "Windows 10 Version 21H2" | >= 10.0.19044.0 < 10.0.19044.6809 Search vendor "Microsoft" for product "Windows 10 Version 21H2" and version " >= 10.0.19044.0 < 10.0.19044.6809" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 Version 22H2 Search vendor "Microsoft" for product "Windows 10 Version 22H2" | >= 10.0.19045.0 < 10.0.19045.6809 Search vendor "Microsoft" for product "Windows 10 Version 22H2" and version " >= 10.0.19045.0 < 10.0.19045.6809" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 11 Version 22H3 Search vendor "Microsoft" for product "Windows 11 Version 22H3" | >= 10.0.22631.0 < 10.0.22631.6491 Search vendor "Microsoft" for product "Windows 11 Version 22H3" and version " >= 10.0.22631.0 < 10.0.22631.6491" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 11 Version 23H2 Search vendor "Microsoft" for product "Windows 11 Version 23H2" | >= 10.0.22631.0 < 10.0.22631.6491 Search vendor "Microsoft" for product "Windows 11 Version 23H2" and version " >= 10.0.22631.0 < 10.0.22631.6491" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 11 Version 24H2 Search vendor "Microsoft" for product "Windows 11 Version 24H2" | >= 10.0.26100.0 < 10.0.26100.7623 Search vendor "Microsoft" for product "Windows 11 Version 24H2" and version " >= 10.0.26100.0 < 10.0.26100.7623" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 11 Version 25H2 Search vendor "Microsoft" for product "Windows 11 Version 25H2" | >= 10.0.26200.0 < 10.0.26200.7623 Search vendor "Microsoft" for product "Windows 11 Version 25H2" and version " >= 10.0.26200.0 < 10.0.26200.7623" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2008 R2 Service Pack 1 Search vendor "Microsoft" for product "Windows Server 2008 R2 Service Pack 1" | >= 6.1.7601.0 < 6.1.7601.28117 Search vendor "Microsoft" for product "Windows Server 2008 R2 Service Pack 1" and version " >= 6.1.7601.0 < 6.1.7601.28117" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2008 R2 Service Pack 1 (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2008 R2 Service Pack 1 (Server Core Installation)" | >= 6.1.7601.0 < 6.1.7601.28117 Search vendor "Microsoft" for product "Windows Server 2008 R2 Service Pack 1 (Server Core Installation)" and version " >= 6.1.7601.0 < 6.1.7601.28117" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2008 Service Pack 2 Search vendor "Microsoft" for product "Windows Server 2008 Service Pack 2" | >= 6.0.6003.0 < 6.0.6003.23717 Search vendor "Microsoft" for product "Windows Server 2008 Service Pack 2" and version " >= 6.0.6003.0 < 6.0.6003.23717" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2008 Service Pack 2 (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2008 Service Pack 2 (Server Core Installation)" | >= 6.0.6003.0 < 6.0.6003.23717 Search vendor "Microsoft" for product "Windows Server 2008 Service Pack 2 (Server Core Installation)" and version " >= 6.0.6003.0 < 6.0.6003.23717" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012" | >= 6.2.9200.0 < 6.2.9200.25868 Search vendor "Microsoft" for product "Windows Server 2012" and version " >= 6.2.9200.0 < 6.2.9200.25868" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2012 (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2012 (Server Core Installation)" | >= 6.2.9200.0 < 6.2.9200.25868 Search vendor "Microsoft" for product "Windows Server 2012 (Server Core Installation)" and version " >= 6.2.9200.0 < 6.2.9200.25868" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2012 R2 Search vendor "Microsoft" for product "Windows Server 2012 R2" | >= 6.3.9600.0 < 6.3.9600.22968 Search vendor "Microsoft" for product "Windows Server 2012 R2" and version " >= 6.3.9600.0 < 6.3.9600.22968" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2012 R2 (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2012 R2 (Server Core Installation)" | >= 6.3.9600.0 < 6.3.9600.22968 Search vendor "Microsoft" for product "Windows Server 2012 R2 (Server Core Installation)" and version " >= 6.3.9600.0 < 6.3.9600.22968" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016" | >= 10.0.14393.0 < 10.0.14393.8783 Search vendor "Microsoft" for product "Windows Server 2016" and version " >= 10.0.14393.0 < 10.0.14393.8783" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2016 (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2016 (Server Core Installation)" | >= 10.0.14393.0 < 10.0.14393.8783 Search vendor "Microsoft" for product "Windows Server 2016 (Server Core Installation)" and version " >= 10.0.14393.0 < 10.0.14393.8783" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2019 Search vendor "Microsoft" for product "Windows Server 2019" | >= 10.0.17763.0 < 10.0.17763.8276 Search vendor "Microsoft" for product "Windows Server 2019" and version " >= 10.0.17763.0 < 10.0.17763.8276" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2019 (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2019 (Server Core Installation)" | >= 10.0.17763.0 < 10.0.17763.8276 Search vendor "Microsoft" for product "Windows Server 2019 (Server Core Installation)" and version " >= 10.0.17763.0 < 10.0.17763.8276" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2022 Search vendor "Microsoft" for product "Windows Server 2022" | >= 10.0.20348.0 < 10.0.20348.4648 Search vendor "Microsoft" for product "Windows Server 2022" and version " >= 10.0.20348.0 < 10.0.20348.4648" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2022, 23H2 Edition (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2022, 23H2 Edition (Server Core Installation)" | >= 10.0.25398.0 < 10.0.25398.2092 Search vendor "Microsoft" for product "Windows Server 2022, 23H2 Edition (Server Core Installation)" and version " >= 10.0.25398.0 < 10.0.25398.2092" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2025 Search vendor "Microsoft" for product "Windows Server 2025" | >= 10.0.26100.0 < 10.0.26100.32230 Search vendor "Microsoft" for product "Windows Server 2025" and version " >= 10.0.26100.0 < 10.0.26100.32230" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2025 (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2025 (Server Core Installation)" | >= 10.0.26100.0 < 10.0.26100.32230 Search vendor "Microsoft" for product "Windows Server 2025 (Server Core Installation)" and version " >= 10.0.26100.0 < 10.0.26100.32230" | en |
Affected
| ||||||