CVE-2026-66819
HIGHCVSS 8.8/10EPSS 0.73%
Last modified
CVE-2026-66819 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges over a network.. EPSS estimates a 0.73% chance of exploitation in the next 30 days.
Description
Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges over a network.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Sql Server 2017 | < 14.0.2130.4 |
| Microsoft | Sql Server 2017 | >= 14.0.3006.16, < 14.0.3550.4 |
| Microsoft | Sql Server 2019 | < 15.0.2190.7 |
| Microsoft | Sql Server 2019 | >= 15.0.4003.23, < 15.0.4490.9 |
| Microsoft | Sql Server 2022 | < 16.0.1200.5 |
| Microsoft | Sql Server 2022 | >= 16.0.4003.1, < 16.0.4275.2 |
| Microsoft | Sql Server 2025 | < 17.0.1135.8 |
| Microsoft | Sql Server 2025 | >= 17.0.4006.2, < 17.0.4085.5 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66819Vendor Advisory, Patch
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-66819?
Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges over a network.
How severe is CVE-2026-66819?
CVE-2026-66819 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.
How do I fix CVE-2026-66819?
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.
Related CVEs from 2026
- CVE-2026-66809Out-of-bounds read in Microsoft Office allows an unauthorize…5.5
- CVE-2026-6681The PKCS#7 decode path ignores the caller-supplied output bu…5.3
- CVE-2026-66810Heap-based buffer overflow in Microsoft Office Word allows a…5.5
- CVE-2026-66814Insufficient granularity of access control in SQL Server all…8.8
- CVE-2026-66816Insufficient logging in SQL Server allows an authorized atta…6.5
- CVE-2026-66818Improper privilege management in SQL Server allows an author…8.8
- CVE-2026-6682In FatFS R0.16 and earlier contains a FAT32 integer overflow…7.6
- CVE-2026-66820Improper neutralization of special elements used in an sql c…8.8
- CVE-2026-66824A stored cross-site scripting vulnerability existed in the c…9.2
- CVE-2026-66825Pivotick contains a cross-site scripting vulnerability in th…6.9
- CVE-2026-66829URL Redirection to Untrusted Site ('Open Redirect') vulnerab…6.1
- CVE-2026-6683FatFs R0.16 and earlier contains a divide-by-zero in exFAT s…4.6
Are you affected by CVE-2026-66819?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST