CVE-2026-66303
Undergoing Analysis
Undergoing Analysis - In Progress
Null pointer dereference in Skype for Business
Vulnerability report for CVE-2026-66303, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-08
Last updated on: 2026-09-08
Assigner: Microsoft Corporation
Description
Description
Null pointer dereference in Skype for Business allows an authorized attacker to deny service over a network.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | skype_for_business | * |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-476 | The product dereferences a pointer that it expects to be valid but is NULL. |
