What is the CVSS score of EUVD-2025-20533?

EUVD-2025-20533 has a CVSS 3.1 base score of 8.0 (High). CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Windows are affected by EUVD-2025-20533?

CVE-2025-49691 is a heap-based buffer overflow in Windows Media with CVSS 8.0 that enables unauthenticated remote code execution from an adjacent network segment.. A patch is available.

How to fix or mitigate EUVD-2025-20533?

Within 24 hours: Identify all systems running Windows Media and segregate them from untrusted network segments; obtain vendor patch details from Microsoft security advisories. Within 7 days: Deploy vendor-released patch to all affected Windows Media installations and validate successful application. Within 30 days: Conduct post-patch verification across the environment and review network segmentation policies to restrict Media service access to authorized networks only.

Windows EUVD-2025-20533

| CVE-2025-49691 HIGH

Heap-based Buffer Overflow (CWE-122)

2025-07-08 secure@microsoft.com

Windows Buffer Overflow Heap Overflow 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 2016 Windows Server 2019 Windows Server 2022 Windows Server 2022 23h2 Windows Server 2025

8.0

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

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

10.0.19044.6093,10.0.17763.7558,10.0.26100.4652

EUVD ID Assigned

Mar 16, 2026 - 04:21 euvd

EUVD-2025-20533

Analysis Generated

Mar 16, 2026 - 04:21 vuln.today

CVE Published

Jul 08, 2025 - 17:15 nvd

HIGH 8.0

DescriptionNVD

Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over an adjacent network.

Analysis

Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code over an adjacent network.

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.

More from same product – last 7 days

CVE-2026-10044 HIGH This Week 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 Monitor

10.0 May 22

Remote code execution in Microsoft Azure Orbital Spatio allows unauthenticated network attackers to upload dangerous fil

CVE-2026-41104 CRITICAL Monitor

10.0 May 22

Unsafe deserialization in Microsoft Planetary Computer Pro (Geocatalog) lets a remote unauthenticated attacker craft mal

CVE-2026-23652 CRITICAL Monitor

10.0 May 22

Remote code execution in Microsoft Power Pages allows unauthenticated network attackers to inject and execute operating-

CVE-2026-47280 CRITICAL Monitor

10.0 May 22

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

EUVD-2025-20533 vulnerability details – vuln.today

Back

Windows EUVD-2025-20533

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

Analysis

Technical ContextAI

RemediationAI

More from same product – last 7 days

Share

External POC / Exploit Code