Out-of-bounds read in Microsoft SQL Server - CVE-2026-78441
Published: September 8, 2026
Vulnerability identifier: #VU147813
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-78441
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in Windows OLE DB. A remote attacker can trigger an out-of-bounds read error and read contents of memory on the system.
Affected software
Microsoft SQL Server
How to mitigate CVE-2026-78441
Install updates from vendor's website.
Microsoft SQL Server - addressed in versions 14.0.2130.4, 14.0.3550.4, 15.0.2190.7, 15.0.4490.9