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CVE-2026-77486

HighCVSS 8.8/10Last modified Sep 15, 2026

Description

Integer overflow or wraparound in SQL Server allows an unauthorized attacker to execute code over a network.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-122 CWE-190

Affected software

Vendor	Product	Versions
Microsoft	Microsoft SQL Server 2017 (CU 31)	>= 14.0.0, < 14.0.3550.4
Microsoft	Microsoft SQL Server 2017 (GDR)	>= 14.0.0, < 14.0.2130.4
Microsoft	Microsoft SQL Server 2019 (CU 32)	>= 15.0.0.0, < 15.0.4490.9
Microsoft	Microsoft SQL Server 2019 (GDR)	>= 15.0.0, < 15.0.2190.7

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77486Vendor Advisory, Patch

Timeline

Published: Sep 8, 2026
Last modified: Sep 15, 2026
NVD status: Analyzed

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CVE-2026-77486: High severity, CVSS 8.8 | Vulnix