CVE-2026-77488CWE-191

CVE-2026-77488

Medium · published September 8, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
33.5
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00404 · 33.5th percentile
Weakness
CWE-191 · Integer Underflow (Wrap or Wraparound)
Published
2026-09-08T22:20Z
Affected products (8)
ProductVersionsFixed in
microsoft/sql_server_2017< 14.0.2130.414.0.2130.4
microsoft/sql_server_2017≥ 14.0.3006.16, < 14.0.3550.414.0.3550.4
microsoft/sql_server_2019< 15.0.2190.715.0.2190.7
microsoft/sql_server_2019≥ 15.0.4003.23, < 15.0.4490.915.0.4490.9
microsoft/sql_server_2022< 16.0.1200.516.0.1200.5
microsoft/sql_server_2022≥ 16.0.4003.1, < 16.0.4275.216.0.4275.2
microsoft/sql_server_2025< 17.0.1135.817.0.1135.8
microsoft/sql_server_2025≥ 17.0.4006.2, < 17.0.4085.517.0.4085.5
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77488 · [email protected]
EPSS history
Timeline
  • 10 SEP 03:18Z
    EPSS moved — → 0%
    epss
  • 08 SEP 17:18Z
    Microsoft SQL Server Information Disclosure Vulnerability
    cvelistv5