CVE-2026-54118
Microsoft SQL Server Remote Code Execution Vulnerability
Deserialization of untrusted data 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
- Low
- 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
Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-54118- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2026-44032
Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.
- Record
EUVD-2026-44032- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-c2qv-v7mm-7vwh
Deserialization of untrusted data in SQL Server allows an authorized attacker to execute code...
Deserialization of untrusted data in SQL Server allows an authorized attacker to execute code over a network.
- Record
GHSA-c2qv-v7mm-7vwh- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
Deserialization of untrusted data in SQL Server allows an unauthorized attacker to execute code over a network.
- Record
CVE-2026-54118- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
- microsoft sql server 2016 service pack 3 (gdr)
- microsoft sql server 2016 service pack 3 azure connect feature pack
- microsoft sql server 2017 (cu 31)
- microsoft sql server 2017 (gdr)
- microsoft sql server 2019 (cu 32)
- microsoft sql server 2019 (gdr)
- microsoft sql server 2022 (gdr)
- microsoft sql server 2022 for x64-based systems (cu 25)
- microsoft sql server 2025 (cu 6)
- microsoft sql server 2025 for x64-based systems (gdr)
- microsoft sql server 2016
- microsoft sql server 2017
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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-2026-54118 is a critical vulnerability (CVSS 9.8) in Microsoft Sql Server 2016 Service Pack 3 (gdr), published July 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.53%, the 74th percentile. No source names a fixed version.