6.5Medium
Microsoft Sql Server 2017
CVE-2026-67648
Use of uninitialized resource in SQL Server allows an authorized attacker to disclose information over a network.
What this means for your business
- It affects Microsoft Sql Server 2017. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it remotely, over a network, with an ordinary user login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 0.6% chance of attack attempts being seen in the next 30 days, ranking above 44% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Microsoft Sql Server 2017, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Fastnexa security experts
Not sure if your company is exposed to CVE-2026-67648?
Tell us where you run Microsoft Sql Server 2017 and a Fastnexa penetration tester will check whether this flaw, or others like it, can be used against your websites, apps and network.
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Scoring
- CVSS
- 6.5 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Weakness
- CWE-908
- Assigned by
- secure@microsoft.com
Dates
- Published
- 2026-09-08
- Last modified
- 2026-09-15
- Sources
- NVD
Affected products
- Microsoft Sql Server 2017- 14.0.2130.4, 14.0.3006.16 - 14.0.3550.4
- Microsoft Sql Server 2019- 15.0.2190.7, 15.0.4003.23 - 15.0.4490.9
- Microsoft Sql Server 2022- 16.0.1200.5, 16.0.4003.1 - 16.0.4275.2
- Microsoft Sql Server 2025- 17.0.1135.8, 17.0.4006.2 - 17.0.4085.5
As listed in the NVD configuration data. Not a statement about your estate.