CVE-2026-55002 — Microsoft SQL Server Elevation of Privilege Vulnerability

Executive Summary

External control of file name or path in SQL Server allows an authorized attacker to elevate privileges locally.

Overview

8.8

CVSS HIGH

Important

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Elevation of Privilege

Weakness CWE-73: External Control of File Name or Path

Released Jul 14 2026

Last Updated Jul 14 2026

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.00618 — 0.46582 percentile

NVD CVSS 8.8 HIGH — differs from MSRC

CVSS Vector

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

ATTACK VECTOR

Network

ATTACK COMPLEXITY

Low

PRIVILEGES REQUIRED

Low

USER INTERACTION

None

SCOPE

Unchanged

CONFIDENTIALITY

High

INTEGRITY

High

AVAILABILITY

High

EXPLOIT CODE MATURITY

Unproven

REMEDIATION LEVEL

Official Fix

REPORT CONFIDENCE

Confirmed

Temporal Score: 6.8

EPSS Score

0.00618

probability of exploitation in the next 30 days

0.46582 percentile - updated 2026-08-14

View on FIRST.org

Affected Products

10 affected products

Product	KB Article	Severity	Impact	Restart Required
Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 (GDR)	`5102340 (Security Update)`	Unknown	Unknown	Maybe
Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 Azure Connect Feature Pack	`5102339 (Security Update)`	Unknown	Unknown	Maybe
Microsoft SQL Server 2017 for x64-based Systems (CU 31)	`5102337 (Security Update)`	Unknown	Unknown	Maybe
Microsoft SQL Server 2017 for x64-based Systems (GDR)	`5102338 (Security Update)`	Unknown	Unknown	Maybe
Microsoft SQL Server 2019 for x64-based Systems (CU 32)	`5102335 (Security Update)`	Unknown	Unknown	Maybe
Microsoft SQL Server 2019 for x64-based Systems (GDR)	`5102336 (Security Update)`	Important	Elevation of Privilege	Maybe
Microsoft SQL Server 2022 for x64-based Systems (CU 25)	`5101347 (Security Update)`	Unknown	Unknown	Maybe
Microsoft SQL Server 2022 for x64-based Systems (GDR)	`5102334 (Security Update)`	Unknown	Unknown	Maybe
Microsoft SQL Server 2025 for x64-based Systems (CU6)	`5101346 (Security Update)`	Unknown	Unknown	Maybe
Microsoft SQL Server 2025 for x64-based Systems (GDR)	`5102333 (Security Update)`	Unknown	Unknown	Maybe

Patches

10 patches

Article	Type	Restart
`5102340`	Security Update	Maybe
`5102339`	Security Update	Maybe
`5102337`	Security Update	Maybe
`5102338`	Security Update	Maybe
`5102335`	Security Update	Maybe
`5102336`	Security Update	Maybe
`5101347`	Security Update	Maybe
`5102334`	Security Update	Maybe
`5101346`	Security Update	Maybe
`5102333`	Security Update	Maybe

Exploits & PoC

No public exploit or PoC has been linked for this CVE yet. When available, references are sourced from public repositories and may be unverified or non-functional — review carefully before use.

Detection Rules

No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.

Acknowledgments

Fabiano Amorim

References

MSRC Advisory MITRE NVD