CVE-2026-67638

EUVD-2026-73386
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 59.74%
Affected Products (NVD)
VendorProductVersion
microsoftsql_server_2025
𝑥
< 17.0.1135.8
microsoftsql_server_2025
17.0.4006.2 ≤
𝑥
< 17.0.4085.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67638