Skip to main content

Windows CVE-2025-49686

| EUVD-2025-20638 HIGH
NULL Pointer Dereference (CWE-476)
2025-07-08 secure@microsoft.com
Windows Denial Of Service Null Pointer Dereference Microsoft Windows 10 1507 Windows 10 1607 Windows 10 1809 Windows 10 21h2 Windows 10 22h2 Windows 11 22h2 Windows 11 23h2 Windows 11 24h2 Windows Server 2008 Windows Server 2012 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows Server 2022 23h2 Windows Server 2025
7.8
CVSS 3.1
Share

CVSS VectorNVD

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

Lifecycle Timeline

6
Analysis Updated
Apr 16, 2026 - 06:30 EUVD-patch-fix
executive_summary
Re-analysis Queued
Apr 16, 2026 - 05:29 backfill_euvd_patch
patch_released
Patch available
Apr 16, 2026 - 05:29 EUVD
10.0.14393.8246,10.0.22631.5624,6.0.6003.23418
EUVD ID Assigned
Mar 16, 2026 - 04:21 euvd
EUVD-2025-20638
Analysis Generated
Mar 16, 2026 - 04:21 vuln.today
CVE Published
Jul 08, 2025 - 17:15 nvd
HIGH 7.8

DescriptionNVD

Null pointer dereference in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

Analysis

Null pointer dereference in Windows TCP/IP allows an authorized attacker to elevate privileges locally.

Technical ContextAI

A NULL pointer dereference occurs when the application attempts to use a pointer that has not been initialized or has been set to NULL.

RemediationAI

Add NULL checks before pointer dereference operations. Use static analysis to identify potential NULL pointer issues. Enable compiler warnings.

More from same product – last 7 days

CVE-2026-10044 HIGH POC
8.2 May 28

{filename} endpoint. The flawed traversal guard only rejects forward slashes and '..' sequences, so absolute Windows pat
CVE-2026-40412 CRITICAL
10.0 May 22

Remote code execution in Microsoft Azure Orbital Spatio allows unauthenticated network attackers to upload dangerous fil
CVE-2026-41104 CRITICAL
10.0 May 22

Unsafe deserialization in Microsoft Planetary Computer Pro (Geocatalog) lets a remote unauthenticated attacker craft mal
CVE-2026-23652 CRITICAL
10.0 May 22

Remote code execution in Microsoft Power Pages allows unauthenticated network attackers to inject and execute operating-
CVE-2026-47280 CRITICAL
10.0 May 22

Privilege elevation in Microsoft Azure Resource Manager (ARM) allows remote unauthenticated attackers to bypass authenti

Share

CVE-2025-49686 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy