CVE-2026-116943
Microsoft SQL Server Information Disclosure Vulnerability
Buffer over-read in SQL Server allows an unauthorized attacker to disclose information over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Microsoft SQL Server Information Disclosure Vulnerability
Buffer over-read in SQL Server allows an unauthorized attacker to disclose information over a network.
- Record
CVE-2026-116943- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Weakness
- CWE-126
- Updated
- 2026-11-10
EUVDEUVD-2026-122535
Buffer over-read in SQL Server allows an unauthorized attacker to disclose information over a network.
- Record
EUVD-2026-122535- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-10
GitHub AdvisoriesGHSA-3r84-78jc-p9h9
Buffer over-read in SQL Server allows an unauthorized attacker to disclose information over a...
Buffer over-read in SQL Server allows an unauthorized attacker to disclose information over a network.
- Record
GHSA-3r84-78jc-p9h9- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-126
- Updated
- 2026-11-10
NVD
Buffer over-read in SQL Server allows an unauthorized attacker to disclose information over a network.
- Record
CVE-2026-116943- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-126
- Updated
- 2026-11-10
Affected products
- microsoft sql server 2017 (gdr)
- microsoft sql server 2017 for x64-based systems (cu31)
- microsoft sql server 2019 (gdr)
- microsoft sql server 2019 for x64-based systems (cu32)
- microsoft sql server 2022 (gdr)
- microsoft sql server 2022 for x64-based systems (cu27)
- microsoft sql server 2025 cu10
- microsoft sql server 2025 for x64-based systems (gdr)
History
| Recorded | Changed | Sources |
|---|---|---|
| published | EUVD | |
| published | EUVD, NVD | |
| aliases, references | GitHub Advisories | |
| cwes, references, severity, title | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-116943 is a high vulnerability (CVSS 7.5) in Microsoft Sql Server 2017 (gdr), published November 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.97%, the 62nd percentile. No source names a fixed version.