Home › Exploited CVEs › CVE-2026-41091
CVE-2026-41091: Microsoft Defender Link Following Vulnerability
Microsoft Defender · in CISA KEV since 2026-05-20
2026-05-20added to KEV
2026-06-03federal remediation due date
8.20%EPSS exploit probability (30 days) 94.6th percentile
7.8 HIGHCVSS 3.1
Unknownknown ransomware use
0days from NVD publication to KEV
What it is
Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| CWE | CWE-59 |
|---|---|
| CVSS vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2026-05-20 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2026-41091.json · all KEV CVEs
Kevscope: daily CISA KEV + EPSS datasetThe whole KEV catalog joined with daily EPSS and CVSS scores as CSV/Parquet, refreshed daily. Free to download.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.