CVE-2026-54117
HIGHCVSS 8.8/10EPSS 1.29%
Last modified
CVE-2026-54117 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Deserialization of untrusted data in SQL Server allows an authorized attacker to execute code over a network.. EPSS estimates a 1.29% chance of exploitation in the next 30 days.
Description
Deserialization of untrusted data in SQL Server allows an authorized attacker to execute code over a network.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Sql Server 2016 | >= 13.0.6300.2, < 13.0.6500.1 |
| Microsoft | Sql Server 2016 | >= 13.0.7000.253, < 13.0.7095.1 |
| Microsoft | Sql Server 2017 | >= 14.0.1000.169, < 14.0.2120.1 |
| Microsoft | Sql Server 2017 | >= 14.0.3006.16, < 14.0.3540.1 |
| Microsoft | Sql Server 2019 | >= 15.0.2000.5, < 15.0.2180.2 |
| Microsoft | Sql Server 2019 | >= 15.0.4003.23, < 15.0.4480.2 |
| Microsoft | Sql Server 2022 | >= 16.0.1000.6, < 16.0.1190.2 |
| Microsoft | Sql Server 2022 | >= 16.0.4003.1, < 16.0.4262.2 |
| Microsoft | Sql Server 2025 | >= 17.0.1000.7, < 17.0.1125.2 |
| Microsoft | Sql Server 2025 | >= 17.0.4006.2, < 17.0.4060.2 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54117Vendor Advisory, Patch
Timeline
- Published
- Last Modified
- Status
- Undergoing Analysis
Frequently Asked Questions
What is CVE-2026-54117?
Deserialization of untrusted data in SQL Server allows an authorized attacker to execute code over a network.
How severe is CVE-2026-54117?
CVE-2026-54117 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.29% probability of exploitation in the next 30 days.
How do I fix CVE-2026-54117?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-54117?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST