CVE-2026-20931
Title: File Name/Path Control in Windows Telephony Service
Arbitrary File Access
Proof Of Concept
No public PoC currently indexed for CVE-2026-20931.
CWE Category
CWE-73
Published Date
Jan 13, 2026
Modified Date
May 26, 2026
Exploit Status
Not Found
Score
8.0
CVSS v3.1
Exploit Probability (EPSS)
0.75%
Vulnerability Summary
CVE-2026-20931: External control of file name or path in Windows Telephony Service allows an authorized attacker to elevate privileges over an adjacent network.
Impacted Vendors
Reference Links
CVSS v3.1
Source Entity
[email protected]
Severity
HIGH
8.0
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Associated Attack Patterns (CAPEC)
Total: PatternsNo specific attack patterns mapped.
Likelihood
Severity
Page /
CVE-2026-20931 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
ADJACENT_NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
CVSS Vector String
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Stack
No specific products linked.