CVE-2026-41091 — Actively Exploited: Defender (Microsoft)
Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally.
| CVE ID | CVE-2026-41091 |
|---|---|
| Vendor | Microsoft |
| Product | Defender |
| Vulnerability name | Microsoft Defender Link Following Vulnerability |
| Date added | 2026-05-20 |
| Remediation due | 2026-06-03 |
| Known ransomware use | Unknown |
| Required action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
| Description | Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally. |
| Source | CISA Known Exploited Vulnerabilities |
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