BlackTreeCVE IntelligenceOctober 2026 Patch TuesdayKB5127357Normal patch window
Microsoft · KB5127357
Linked CVE review
Deploy Microsoft ESU security update KB5127357
- Linked CVEs
- 2
- Confirmed exploited
- 0
- PoC or lab evidence
- 0
- Maximum CVSS
- 7.8
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.
2 of 2 linked CVEs shown
Confirmed exploitedCVSS above 9.0
| CVE and description | Severity | Exploit reality | Forecast and access | Remediation |
|---|---|---|---|---|
CVE-2026-69950 Scheduled assessment Windows Overlay Filter Elevation of Privilege VulnerabilityBuffer over-read in Windows Overlay Filter allows an authorized attacker to elevate privileges locally. | 7.8 · 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: 0.34% · 25.9th percentileForecast date: 2026-10-14LOCAL · LOW complexity · LOW privileges · NONE user interaction | Within 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Mitigation available. No fixed version is explicitly recorded in the structured CVE data. |
CVE-2026-83863 Scheduled assessment Servicing Stack Updates Elevation of Privilege VulnerabilityHeap-based buffer overflow in Servicing Stack Updates allows an authorized attacker to elevate privileges locally. | 7.8 · 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: 0.32% · 23.1th percentileForecast date: 2026-10-14LOCAL · LOW complexity · LOW privileges · NONE user interaction | Within 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Mitigation available. No fixed version is explicitly recorded in the structured CVE data. |