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Vulnerability details

CVE-2026-77480

Microsoft SQL Server

SQL Server Elevation of Privilege Vulnerability

CVSS 3.1
8.8High

Official description

Insufficient granularity of access control in SQL Server allows an authorized attacker to elevate privileges over a network.

CVSS scores

ScoreVersionSourceVector
8.8High 3.1 CVEProject cvelistV5 (CNA) (microsoft) 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

Affected products

VendorProductVersionsSource
Microsoft Microsoft SQL Server 2017 (CU 31) 14.0.0 ≤ v < 14.0.3550.4 CVEProject cvelistV5 (CNA)
Microsoft Microsoft SQL Server 2017 (GDR) 14.0.0 ≤ v < 14.0.2130.4 CVEProject cvelistV5 (CNA)
Microsoft Microsoft SQL Server 2019 (CU 32) 15.0.0.0 ≤ v < 15.0.4490.9 CVEProject cvelistV5 (CNA)
Microsoft Microsoft SQL Server 2019 (GDR) 15.0.0 ≤ v < 15.0.2190.7 CVEProject cvelistV5 (CNA)
Microsoft Microsoft SQL Server 2022 (CU 26) 16.0.0.0 ≤ v < 16.0.4275.2 CVEProject cvelistV5 (CNA)
Microsoft Microsoft SQL Server 2022 (GDR) 16.0.0 ≤ v < 16.0.1200.5 CVEProject cvelistV5 (CNA)
Microsoft Microsoft SQL Server 2025 (CU8) 17.0.0.0 ≤ v < 17.0.4085.5 CVEProject cvelistV5 (CNA)
Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2 ≤ v < 17.0.1135.8 CVEProject cvelistV5 (CNA)

References and advisories

1
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Details

Published
2026-09-08
Last updated
2026-10-31
State
Published
Assigner (CNA)
microsoft

Exploit prediction (EPSS)

0.77%
Probability of exploitation in 30 days
56%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
No
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-1220
    Insufficient Granularity of Access Control