CVE-2026-77486CWE-122CWE-190

CVE-2026-77486

High · published September 8, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
56.8
In the wild
Unconfirmed
What it is

Integer overflow or wraparound in SQL Server allows an unauthorized attacker to execute code over a network.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00819 · 56.8th percentile
Weaknesses
CWE-122 · Heap-based Buffer Overflow; CWE-190 · Integer Overflow or Wraparound
Published
2026-09-08T22:20Z
Affected products (4)
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
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-77486 · [email protected]
EPSS history
Timeline
  • 10 SEP 03:18Z
    EPSS moved — → 1%
    epss
  • 08 SEP 17:18Z
    Microsoft SQL Server Remote Code Execution Vulnerability
    cvelistv5