Quick answers
- Is CVE-2026-67374 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-67374 being exploited in the wild.
- How severe is CVE-2026-67374?
- High severity, with a CVSS score of 8.8, published 10 November 2026.
- Which products and versions are affected?
- Microsoft SQL Server.
- Is there a fix for CVE-2026-67374?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-67374 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-67374?
- Check whether you run Microsoft SQL Server. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A heap-based buffer overflow exists in Microsoft SQL Server that can be triggered by an authenticated attacker over the network. The vulnerability requires valid SQL Server credentials to exploit, but once triggered allows remote code execution with the privileges of the SQL Server service account. This is a memory corruption vulnerability in a privileged network service.
Affected products
- Microsoft SQL Server
Timeline
- 2026-11-10: disclosed