EUVD-2025-20646

| CVE-2025-49658 MEDIUM
2025-07-08 [email protected]
5.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 16, 2026 - 04:21 vuln.today
EUVD ID Assigned
Mar 16, 2026 - 04:21 euvd
EUVD-2025-20646
CVE Published
Jul 08, 2025 - 17:15 nvd
MEDIUM 5.5

Tags

Microsoft Information Disclosure Buffer Overflow Windows Server 2019 Windows Server 2012 Windows 10 21h2 Windows Server 2022 23h2 Windows 11 23h2 Windows Server 2025 Windows 10 22h2 Windows Server 2008 Windows Server 2022 Windows 11 24h2 Windows 11 22h2 Windows 10 1809 Windows 10 1507 Windows Server 2016 Windows 10 1607 Windows

Description

Out-of-bounds read in Windows TDX.sys allows an authorized attacker to disclose information locally.

Analysis

Out-of-bounds read in Windows TDX.sys allows an authorized attacker to disclose information locally.

Technical Context

An out-of-bounds memory access occurs when code reads from or writes to memory locations outside the intended buffer boundaries. This vulnerability is classified as Out-of-bounds Read (CWE-125).

Affected Products

Affected products: Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809

Remediation

Implement proper bounds checking on all array and buffer accesses. Use memory-safe languages or static analysis tools to detect OOB issues.

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +28
POC: 0

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EUVD-2025-20646 vulnerability details – vuln.today
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