Quick answers
- Is CVE-2026-67378 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-67378 being exploited in the wild.
- How severe is CVE-2026-67378?
- Critical severity, with a CVSS score of 9, published 8 September 2026.
- Which products and versions are affected?
- Microsoft SQL Server.
- Is there a fix for CVE-2026-67378?
- 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-2026-67378 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-67378?
- 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
The vulnerability involves an untrusted pointer dereference in SQL Server that enables remote code execution. The flaw can be exploited over the network without requiring prior authentication, allowing an attacker to execute arbitrary code with the privileges of the SQL Server process. This is a memory corruption issue that could be triggered through specially crafted network requests. Microsoft has released a security update to address this issue.
Affected products
- Microsoft SQL Server
Timeline
- 2026-09-08: disclosed