BlackTreeCVE IntelligenceMay 2026 Patch TuesdayKB5091223Normal patch window
Microsoft · KB5091223
Linked CVE review
Deploy Microsoft SQL Server security update KB5091223
- Linked CVEs
- 1
- Confirmed exploited
- 0
- PoC or lab evidence
- 0
- Maximum CVSS
- 8.8
Confirmed exploitation, public exploit material, EPSS probability and CVSS severity answer different questions. “No confirmation recorded” means the checked sources do not currently confirm exploitation. It is not proof that exploitation has not occurred.
1 of 1 linked CVEs shown
Confirmed exploitedCVSS above 9.0
| CVE and description | Severity | Exploit reality | Forecast and access | Remediation |
|---|---|---|---|---|
CVE-2026-40370 Scheduled assessment SQL Server Remote Code Execution VulnerabilityExternal control of file name or path in SQL Server allows an authorized attacker to execute code over a network. | 8.8 · CVSS 3.1 · HighSource: CNA | No confirmation recordedNo CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.None recordedNo exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds. | EPSS: 1.01% · 62.0th percentileForecast date: 2026-10-06NETWORK · LOW complexity · LOW privileges · NONE user interaction | Within 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Awaiting fix. No fixed version is explicitly recorded in the structured CVE data. |