CVE-2026-41090CRITICAL 9.3EPSS p42.1%

CVE-2026-41090CVE-2026-41090

Description

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.

Scoring

CVSS 3.19.3 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
EPSS0.56% probability of exploitation · percentile 42.1% · 2026-06-18T12:00:27Z
Published2026-05-22
Last modified2026-05-26

Underlying weaknesses· 1

CWE-77

References

  1. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41090

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements used in a Command ('Command Injection')cwe-770%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.