CVE-2026-94520: microsoft microsoft sql server 2017 for x64-based systems (cu31)
CVSS: 4.9v3.1MediumAwaiting analysis
Published 13-10-2026Last modified 16-10-2026
Vulnerability summary
CVE-2026-94520 is a medium (CVSS 4.9) vulnerability in microsoft microsoft sql server 2017 for x64-based systems (cu31). EPSS estimates a 0.61% chance of exploitation in the next 30 days, higher than 48% of scored vulnerabilities.
CVSS score
4.9/10
010
Medium · v3.1 (CVE.org)EPSS score
0.61%
0%100%
Low · Change unavailableKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 13-10-2026PublishedVulnerability first disclosed.
- 16-10-2026Last modifiedVulnerability information updated.
Description
Use of externally-controlled format string in SQL Server allows an authorized attacker to deny service over a network.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 4.9Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:CSourcesAll 2 agree
- NVDNIST4.9MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.61%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
14-10-202619-10-2026
EPSS score0.61%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft8 products
- microsoft sql server 2017 for x64-based systems (cu31)≥ 14.0.3006.16, < 14.0.3560.2
- microsoft sql server 2017 (gdr)≥ 14.0.0, < 14.0.2140.2
- microsoft sql server 2019 for x64-based systems (cu32)≥ 15.0.4003.23, < 15.0.4500.2
- microsoft sql server 2019 (gdr)≥ 15.0.0, < 15.0.2200.2
- microsoft sql server 2022 for x64-based systems (cu27)≥ 16.0.4003.1, < 16.0.4305.5
1 vendor · 8 products