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Windows 10 1809 CVE-2025-49732

| EUVDEUVD-2025-20543 HIGH
Heap-based Buffer Overflow (CWE-122)
2025-07-08 secure@microsoft.com
Microsoft Heap Overflow Buffer Overflow Windows 10 1809 Windows 10 22h2 Windows Server 2022 Windows Server 2025 Windows Server 2012 Windows Server 2019 Windows Server 2022 23h2 Windows 11 23h2 Windows 11 22h2 Windows 10 21h2 Windows 10 1507 Windows 11 24h2 Windows Server 2008 Windows 10 1607 Windows Server 2016
7.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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 - 06:29 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
6.1.7601.27820,6.0.6003.23418,10.0.22631.5624
EUVD ID Assigned
Mar 16, 2026 - 04:21 euvd
EUVD-2025-20543
Analysis Generated
Mar 16, 2026 - 04:21 vuln.today
CVE Published
Jul 08, 2025 - 17:16 nvd
HIGH 7.8

DescriptionCVE.org

Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

Analysis

Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally.

Technical ContextAI

A buffer overflow occurs when data written to a buffer exceeds its allocated size, potentially overwriting adjacent memory and corrupting program state. This vulnerability is classified as Heap-based Buffer Overflow (CWE-122).

RemediationAI

Use memory-safe languages or bounds-checked functions. Enable ASLR, DEP/NX, and stack canaries. Apply vendor patches promptly.

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Same weakness CWE-122 – Heap-based Buffer Overflow

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Same technique Heap Overflow

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CVE-2025-49732 vulnerability details – vuln.today
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