8.8High

CVE-2026-67642Microsoft SQL Server Remote Code Execution Vulnerability

Microsoft Microsoft SQL Server 2025 (CU8); Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR) Published: 2026-09-08 20:14 (2 months ago)

Description

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

Weakness (CWE): CWE-122

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
Microsoft	Microsoft SQL Server 2025 (CU8)	17.0.0.0 – < 17.0.4085.5
Microsoft	Microsoft SQL Server 2025 for x64-based Systems (GDR)	17.0.1050.2 – < 17.0.1135.8
microsoft	sql server 2025	17.0.0.0 – < 17.0.4085.5

References and patches

Microsoft SQL Server Remote Code Execution Vulnerability vendor-advisorypatchVendor AdvisoryPatch

CPE matches (NVD) (2)

cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:* < 17.0.1135.8
cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:* ≥ 17.0.4006.2 < 17.0.4085.5

CVSS score

8.8High

Source: microsoft · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

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

All scores (2)

cna	CVSS 3.1	8.8High
secure@microsoft.com	CVSS 3.1	8.8High

EPSS (chance of exploitation in 30 days)

0.91%

higher than 61% of all CVEs

CISA assessment (SSVC)

Exploitation: none
Automatable: no
Technical impact: total

Timeline

ID reserved2026-07-29
Published2026-09-08 20:14
Reached IP-DB2026-10-24 23:46
Last updated2026-11-11 00:33

Assigned by (CNA): microsoft
NVD status: Analyzed

View at source: CVE.org · NVD

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