What is the CVSS score of EUVD-2025-20562?

EUVD-2025-20562 has a CVSS 3.1 base score of 8.4 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Microsoft are affected by EUVD-2025-20562?

CVE-2025-49696 is a high-severity out-of-bounds read vulnerability in Microsoft Office that enables local code execution without user privileges, affecting any organization with Office deployments.. A patch is available.

How to fix or mitigate EUVD-2025-20562?

Within 24 hours: Inventory all Microsoft Office installations across the organization and identify affected versions. Within 7 days: Apply vendor-released patch to all Microsoft Office instances; coordinate with IT teams to prioritize systems handling sensitive data. Within 30 days: Conduct post-patch verification across 100% of endpoints and update vulnerability management records.

Microsoft EUVD-2025-20562

| CVE-2025-49696 HIGH

Heap-based Buffer Overflow (CWE-122)

2025-07-08 secure@microsoft.com

Microsoft Heap Overflow Buffer Overflow

8.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.4 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

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

16.0.5508.1001,16.0.19029.20000,16.99.25071321

EUVD ID Assigned

Mar 16, 2026 - 04:21 euvd

EUVD-2025-20562

Analysis Generated

Mar 16, 2026 - 04:21 vuln.today

CVE Published

Jul 08, 2025 - 17:15 nvd

HIGH 8.4

DescriptionCVE.org

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.

Analysis

Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code 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).