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High 7.2Published Jan 13, 2026
CVE-2026-20803Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.
Updated under an hour ago ()
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It affects microsoft sql_server_2022 and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.
- CVSS
- 7.2 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-306
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 30, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
microsoft sql_server_2022 microsoft:sql_server_2022 | from 16.0.1000.6 before 16.0.1165.1; from 16.0.4003.1 before 16.0.4230.2 | NVD |
microsoft sql_server_2025 microsoft:sql_server_2025 | 17.0.1000.7 | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20803vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.