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High 8.8Published Sep 8, 2026
CVE-2026-67638Microsoft SQL Server Remote Code Execution Vulnerability
Updated under an hour ago ()
Does this affect you?
It affects Microsoft SQL Server 2025 (CU8) and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
- CVSS
- 8.8 HIGH (v3.1, CNA)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
- Weakness (CWE)
- CWE-122
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- microsoft
- NVD analysis
- Analyzed
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Microsoft Microsoft SQL Server 2025 (CU8) microsoft:sql_server_2025_cu8 (from the name) | from 17.0.0.0 before 17.0.4085.5 | CNA record |
Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR) microsoft:sql_server_2025_for_x64_based_systems_gdr (from the name) | from 17.0.1050.2 before 17.0.1135.8 | CNA record |
microsoft sql_server_2025 microsoft:sql_server_2025 | before 17.0.1135.8; from 17.0.4006.2 before 17.0.4085.5 | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67638vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.