CVE-2026-41091 — Microsoft Defender Link Following Vulnerability
2026-05-20 • CISA Known Exploited Vulnerability
[event] Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally.
> AFFECTED SOFTWARE
| Field | Value |
|---|---|
| Vendor | Microsoft |
| Product | Defender |
| CWE | CWE-59 |
| CVE ID | CVE-2026-41091 |
| Date Added | 2026-05-20 |
| Due Date | 2026-06-03 |
| Ransomware Campaign | Unknown |
> MITIGATION
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Due Date: 2026-06-03