PT-2026-58125 · Microsoft · Odbc Driver For Sql Server

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-42990

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Microsoft SQL Server ODBC driver (affected versions not specified)

Description A heap-based buffer overflow exists in the SQL Server ODBC driver. This flaw allows an unauthorized attacker to execute arbitrary code over a network. A heap-based buffer overflow occurs when a program writes more data to a heap memory buffer than it can hold, potentially overwriting adjacent memory locations.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

CVE-2026-42990

Affected Products

Odbc Driver For Sql Server

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-42990 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42990 · Vendor Advisory
• https://vulnipulse.com/vendors/microsoft · Reddit Post
• https://twitter.com/windowsforum/status/2077104644782788961 · Twitter Post
• https://twitter.com/vuldb/status/2077090442433442025 · Twitter Post
• https://reddit.com/r/WindowsServer/comments/1uwgs1f/sql_server_odbc_driver_elevation_of_privilege · Reddit Post