CVE-2026-67636
Microsoft SQL Server Remote Code Execution Vulnerability
Out-of-bounds read in SQL Server allows an unauthorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft SQL Server Remote Code Execution Vulnerability
Out-of-bounds read in SQL Server allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-67636- CVSS 3.1
- 9.0 Critical
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-125
- Updated
- 2026-11-02
EUVDEUVD-2026-73316
Out-of-bounds read in SQL Server allows an unauthorized attacker to execute code over a network.
- Record
EUVD-2026-73316- CVSS 3.1
- 9.0 Critical
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-9r6v-wqq6-8v3r
Out-of-bounds read in SQL Server allows an authorized attacker to execute code over a network.
Out-of-bounds read in SQL Server allows an authorized attacker to execute code over a network.
- Record
GHSA-9r6v-wqq6-8v3r- CVSS 3.1
- 8.5 High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
NVD
Out-of-bounds read in SQL Server allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-67636- CVSS 3.1
- 9.0 Critical
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-67636 is a critical vulnerability (CVSS 9.0) in Microsoft Sql Server 2019 (cu 32), published September 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.71%, the 53rd percentile. No source names a fixed version.