CVE-2026-77488

Microsoft SQL Server Information Disclosure Vulnerability

At a glance

Severity
MEDIUM 5.5
EPSS
EPSS 0.40 % · percentile 34 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
microsoft
NVD status
Analyzed

Description

Integer underflow (wrap or wraparound) in SQL Server allows an authorized attacker to disclose information locally.

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:Cmicrosoft
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NNVD · secure@microsoft.com (Secondary)

Weaknesses (CWE)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Microsoft · Microsoft SQL Server 2017 (CU 31)affected 14.0.0 < 14.0.3550.4
Microsoft · Microsoft SQL Server 2017 (GDR)affected 14.0.0 < 14.0.2130.4
Microsoft · Microsoft SQL Server 2019 (CU 32)affected 15.0.0.0 < 15.0.4490.9
Microsoft · Microsoft SQL Server 2019 (GDR)affected 15.0.0 < 15.0.2190.7
Microsoft · Microsoft SQL Server 2022 (CU 26)affected 16.0.0.0 < 16.0.4275.2
Microsoft · Microsoft SQL Server 2022 (GDR)affected 16.0.0 < 16.0.1200.5
Microsoft · Microsoft SQL Server 2025 (CU8)affected 17.0.0.0 < 17.0.4085.5
Microsoft · Microsoft SQL Server 2025 for x64-based Systems (GDR)affected 17.0.1050.2 < 17.0.1135.8

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD