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Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

MicrosoftCVE-2026-77482

Microsoft SQL Server: heap buffer overflow

Microsoft

CVE-2026-77482 · Published Sep 8, 2026 · updated Sep 15, 2026

High8.8
Fix: upgrade to 14.0.3550.4 or later (4 fixed versions below)
Microsoft advisory

Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.

Affected versions

PackageAffectedFixed in
Microsoft SQL Server 2017 (CU 31)
Product
>= 14.0.0, < 14.0.3550.414.0.3550.4
Microsoft SQL Server 2017 (GDR)
Product
>= 14.0.0, < 14.0.2130.414.0.2130.4
Microsoft SQL Server 2019 (CU 32)
Product
>= 15.0.0.0, < 15.0.4490.915.0.4490.9
Microsoft SQL Server 2019 (GDR)
Product
>= 15.0.0, < 15.0.2190.715.0.2190.7
Details and references
CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-122

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