BlackTreeCVE IntelligenceSeptember 2026 Patch TuesdayKB5126049Normal patch window
Microsoft · KB5126049
Linked CVE review
Deploy Microsoft Developer Tools security update KB5126049
- 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-2026-69522 Scheduled assessment .NET and Visual Studio Remote Code Execution VulnerabilityHeap-based buffer overflow in Visual Studio allows an unauthorized 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: 0.91% · 58.8th percentileForecast date: 2026-10-07NETWORK · LOW complexity · NONE privileges · REQUIRED user interaction | Within 7 daysHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.Patch available. 10.0.12:Security Update:https://support.microsoft.com/kb/5126106 |