What is the CVSS score of EUVD-2025-20626?

EUVD-2025-20626 has a CVSS 3.1 base score of 8.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Sql Server 2019 are affected by EUVD-2025-20626?

CVE-2025-49717 is a high-severity heap-based buffer overflow in SQL Server that permits authenticated network attackers to execute arbitrary code, potentially compromising database confidentiality,…. A patch is available.

How to fix or mitigate EUVD-2025-20626?

Within 24 hours: Inventory all SQL Server installations and identify versions affected by CVE-2025-49717; consult Microsoft security advisory for exact affected versions. Within 7 days: Apply vendor-released patch to all production and non-production SQL Server instances in priority order, beginning with systems containing sensitive data. Within 30 days: Verify patch deployment across all environments via vulnerability scanning and validate application functionality post-update.

Sql Server 2019 EUVD-2025-20626

| CVE-2025-49717 HIGH

Heap-based Buffer Overflow (CWE-122)

2025-07-08 secure@microsoft.com

Buffer Overflow Heap Overflow Sql Server 2019 Sql Server 2022

8.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

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

16.0.4200.1,15.0.2135.5,15.0.4435.7

EUVD ID Assigned

Mar 16, 2026 - 04:21 euvd

EUVD-2025-20626

Analysis Generated

Mar 16, 2026 - 04:21 vuln.today

CVE Published

Jul 08, 2025 - 17:15 nvd

HIGH 8.5

DescriptionCVE.org

Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.

Analysis

Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a 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).