CVE-2026-41100

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 34/100
Published: 2026-05-12 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: Low
I: Low
A: None

Description

Improper access control in M365 Copilot allows an authorized attacker to perform spoofing locally.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
microsoft 365_copilot < 16.0.19822.20190

References & Advisories (1)

Bug Bounty Relevance

34 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

4.4 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS — Exploitation Probability

0.25%
Raw Score 0.002490
Percentile 16.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00249
2026-10-28
0.00249

Intelligence Sources

nvd ref →