01 Record
CVE-2026-94520
Microsoft SQL Server Denial of Service Vulnerability
MediumPUBLISHEDCNA: microsoft
CNA base score4.9 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
02 Description
Microsoft SQL Server Denial of Service Vulnerability
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.84% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 57.6% of scored records. A rank, not a probability.
- NVD base score
- 4.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-10-15.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-10-13 20:37Z15 DAYS AGO
- Last updated
- 2026-10-28 18:19Z15 HR AGO
- Reserved
- 2026-09-21
- Assigning CNA
- microsoft
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 4.9)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
- Weaknesses
- CWE-134Use of Externally-Controlled Format StringBase
- Data version
- 5.2
- Document digest
- 0ff27cd2f73cf357d2fc241ad7ad3e7e5f9f8c3eb3edbab9719c42d7712b0768
05 Affected products
VendorProductVersionsPlatforms
MicrosoftMicrosoft SQL Server 2017 for x64-based Systems (CU31)14.0.3006.16 to < 14.0.3560.2x64-based Systems
MicrosoftMicrosoft SQL Server 2019 for x64-based Systems (CU32)15.0.4003.23 to < 15.0.4500.2x64-based Systems
MicrosoftMicrosoft SQL Server 2022 for x64-based Systems (CU27)16.0.4003.1 to < 16.0.4305.5x64-based Systems
MicrosoftMicrosoft SQL Server 2025 for x64-based Systems (CU9)17.0.4006.2 to < 17.0.5015.4x64-based Systems
MicrosoftMicrosoft SQL Server 2025 for x64-based Systems (GDR)17.0.1050.2 to < 17.0.1145.4x64-based Systems
06 References
- msrc.microsoft.comMicrosoft SQL Server Denial of Service Vulnerabilityhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-94520