What is the CVSS score of CVE-2025-49717?

CVE-2025-49717 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 CVE-2025-49717?

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 CVE-2025-49717?

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 CVE-2025-49717

EUVD-2025-20626 HIGH

Heap-based Buffer Overflow (CWE-122)

2025-07-08 secure@microsoft.com

Heap Overflow Buffer 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

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).