Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
CVE-2026-67373 · GHSA-hw7m-97vj-v7g7 · EUVD-2026-73182 · published 8 Sept 2026
How serious is it
- Severity: high, CVSS score 8.8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-67373?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR): 17.0.1050.2 <17.0.1135.8
- Microsoft Microsoft SQL Server 2025 (CU8): 17.0.0.0 <17.0.4085.5
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
Merged from ENISA EUVD. Last updated 27 Oct 2026. All vulnerabilities · RSS · JSON