CVE intelligence

CVE-2026-54118

Vulnerability intelligence

Published Jul 14, 2026Sources checked Nov 12, 2026

9.8CRITICALCVSS out of 10

What this means

Review the available evidence

CVE-2026-54118 and is rated Critical severity with a CVSS score of 9.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Aug 20, 2026

Vendor remediation details

Install KB5102339. Install KB5102336. Install KB5102334. Install KB5102337. Install KB5102335. Install KB5101347. Install KB5102333. Install KB5101346. Install KB5102340. Install KB5102338.

Vendor-listed releases

13.0.7095.1
15.0.2180.2
16.0.1190.2
14.0.3540.1
15.0.4480.2
16.0.4262.2
17.0.1125.2
17.0.4060.2
13.0.6500.1
14.0.2120.1

CISA KEVNot listedBased on the latest collected catalog

EPSS1.5%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-54118?

Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.

Source: NVD