CVE-2026-20872
Title: External control of file name or path in Windows NTLM
Arbitrary File Access
Proof Of Concept
No public PoC currently indexed for CVE-2026-20872.
CWE Category
CWE-73
Published Date
Jan 13, 2026
Modified Date
Mar 27, 2026
Exploit Status
Not Found
Score
6.5
CVSS v3.1
Exploit Probability (EPSS)
19.11%
Vulnerability Summary
CVE-2026-20872: External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.
Impacted Vendors
Reference Links
CVSS v3.1
Source Entity
[email protected]
Severity
MEDIUM
6.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Associated Attack Patterns (CAPEC)
Total: PatternsNo specific attack patterns mapped.
Likelihood
Severity
Page /
CVE-2026-20872 Exploits & PoCs (Proof Of Concept)
No public PoCs found in our database for this CVE.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
Attack Vector Matrix
Access Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
CVSS Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected Stack
No specific products linked.