Detections
Analytics
Security Updates for Microsoft SQL Server (October 2026)
high Nessus Plugin ID 365627
Synopsis
The Microsoft SQL Server installation on the remote host is affected by multiple vulnerabilities.Description
The Microsoft SQL Server installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:- Deserialization of untrusted data in SQL Server allows an authorized attacker to execute code over a network. (CVE-2026-65674)
- Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
(CVE-2026-94512)
- Stack-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.
(CVE-2026-88083)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Microsoft has released the following security updates to address this issue:-KB5126934
-KB5126967
-KB5128492
-KB5128493
-KB5128494
-KB5128495
-KB5128496
-KB5128497
See Also
https://support.microsoft.com/help/5126934
https://support.microsoft.com/help/5126967
https://support.microsoft.com/help/5128492
https://support.microsoft.com/help/5128493
https://support.microsoft.com/help/5128494
https://support.microsoft.com/help/5128495
Plugin Details
Severity: High
ID: 365627
File Name: smb_nt_ms26_oct_mssql.nasl
Version: 1.2
Type: Local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 10/14/2026
Updated: 10/15/2026
Configuration: Enable thorough checks (optional)
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5
Percentile: 93.15
CVSS v2
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 4.8
Vector: CVSS2#AV:L/AC:L/Au:M/C:C/I:C/A:C
CVSS Score Source: CVE-2026-70189
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 7.7
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS Score Source: CVE-2026-94512
Vulnerability Information
CPE: cpe:/a:microsoft:sql_server
Required KB Items: SMB/MS_Bulletin_Checks/Possible
Exploit Ease: No known exploits are available
Patch Publication Date: 10/13/2026
Vulnerability Publication Date: 10/13/2026
Reference Information
CVE: CVE-2026-65674, CVE-2026-67625, CVE-2026-67626, CVE-2026-67628, CVE-2026-68883, CVE-2026-70189, CVE-2026-83945, CVE-2026-85876, CVE-2026-85886, CVE-2026-85888, CVE-2026-85919, CVE-2026-88081, CVE-2026-88082, CVE-2026-88083, CVE-2026-88084, CVE-2026-88085, CVE-2026-88086, CVE-2026-88088, CVE-2026-88089, CVE-2026-94512, CVE-2026-94520, CVE-2026-96956