CVE-2026-41091HIGH 7.8CISA KEVEPSS p63.4%

CVE-2026-41091Microsoft Defender Link Following Vulnerability

Microsoft / Defender

Description

Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally.

Scoring

CVSS 3.17.8 (HIGH)
VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS1.17% probability of exploitation · percentile 63.4% · 2026-06-18T12:00:27Z
Published2026-05-20
Last modified2026-05-20

CISA KEV entry

Added to KEV: 2026-05-20

Underlying weaknesses· 1

CWE-59

References

  1. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41091
  2. https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-41091

1

TypeTargetConfidenceTier
WeaknessImproper Link Resolution Before File Access ('Link Following')cwe-590%live

(incoming)1

TypeTargetConfidenceTier
KEVEntryMicrosoft Defender Link Following Vulnerabilitykev-cve-2026-410910%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-50511
CVE
CVE-2026-41086
CVE
Microsoft Windows Link Following Vulnerability
CVE
CVE-2026-50512
CVE
Microsoft Defender Insufficient Granularity of Access Control Vulnerability
CVE
CVE-2026-42989
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.