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CVE-2026-54118Microsoft SQL Server Remote Code Execution Vulnerability

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

9.8 CRITICALEPSS 1.53%Not in KEVNVD: Modified

Last updated: 2026-11-01 17:32 UTC

OverviewCVSS details

9.8CRITICALCVSS 3.1

Score source: microsoft (CNA)
NVD status: Modified
Published: Jul 14, 2026
Assigner: microsoft

Affected

Microsoft SQL Server 2016 Service Pack 3 (GDR) (Microsoft)

Versions: 13.0.0 before 13.0.6500.1
Fixed in: 13.0.6500.1

+9 more products →

Exploitation

Public exploit: None listed
CISA KEV: Not listed
KEV due date: —
SSVC: Exploitation none · Automatable no · Impact total

EPSS · FIRST, scored Nov 8

1.53%chance of exploitation in 30 days

Higher than 74.95% of CVEs

CVSS 3.1 · microsoft (CNA)

9.8Critical

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

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

CVSS 3.1 · microsoft (CNA)

9.8Critical

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

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

NVD status: Modified

Overview Affected Products References

Overview

Severity

Score	Severity	Version	Vector String
9.8	CRITICAL	3.1microsoft (CNA)	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8	CRITICAL	3.1microsoft (CNA)	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Details

CVE ID: CVE-2026-54118
Status: Modified
Assigner (CNA): microsoft
Published: Jul 14, 2026
Last modified: 2026-11-01 17:32 UTC
Weaknesses: CWE-502 · Deserialization of Untrusted Data

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-09 09:16 UTC.