Sep 2026: Microsoft SQL Server Information Disclosure Vulnerability
CVE-2026-67390 Published on September 8, 2026
Microsoft SQL Server Information Disclosure Vulnerability
Buffer over-read in SQL Server allows an authorized attacker to disclose information over a network.
Weakness Type
Buffer Over-read
The software reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. This typically occurs when the pointer or its index is incremented to a position beyond the bounds of the buffer or when pointer arithmetic results in a position outside of the valid memory location to name a few. This may result in exposure of sensitive information or possibly a crash.
Products Associated with CVE-2026-67390
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Affected Versions
Microsoft SQL Server 2017 (CU 31):- Version 14.0.0 and below 14.0.3550.4 is affected.
- Version 14.0.0 and below 14.0.2130.4 is affected.
- Version 15.0.0.0 and below 15.0.4490.9 is affected.
- Version 15.0.0 and below 15.0.2190.7 is affected.
- Version 16.0.0.0 and below 16.0.4275.2 is affected.
- Version 16.0.0 and below 16.0.1200.5 is affected.
- Version 17.0.0.0 and below 17.0.4085.5 is affected.
- Version 17.0.1050.2 and below 17.0.1135.8 is affected.