CVE-2026-20803: microsoft microsoft sql server 2022 for x64-based systems (cu 22)
CVSS: 7.2v3.1HighAnalyzed
Published 13-01-2026Last modified 30-07-2026
Vulnerability summary
CVE-2026-20803 is a high (CVSS 7.2) vulnerability in microsoft microsoft sql server 2022 for x64-based systems (cu 22). EPSS estimates a 1.25% chance of exploitation in the next 30 days, higher than 68.9% of scored vulnerabilities.
CVSS score
7.2/10
010
High · v3.1 (CVE.org)EPSS score
1.25%
0%100%
Low · -0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-01-2026PublishedVulnerability first disclosed.
- 30-07-2026Last modifiedVulnerability information updated.
Description
Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.2Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST7.2HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.25%
Chance of exploitation in the next 30 days
Percentile
69%
Versus all other CVEs
30-day change
-0.02 pp
From 1.27% on 20-09-2026
20-09-202620-10-2026
EPSS score1.25%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft5 products
- microsoft sql server 2022 for x64-based systems (cu 22)≥ 16.0.0.0, < 16.0.4230.2
- microsoft sql server 2022 (gdr)≥ 16.0.0, < 16.0.1165.1
- microsoft sql server 2025 for x64-based systems (gdr)≥ 17.0.1050.2, < 17.0.1050.2
- sql_server_2022≥ 16.0.1000.6, < 16.0.1165.1 | ≥ 16.0.4003.1, < 16.0.4230.2
- sql_server_202517.0.1000.7
1 vendor · 5 products
