Dashboard / CVE-2026-58617

CVE-2026-58617

HIGH
MEDIUM Priority: 0.06 BB Relevance: 66/100
Published: 2026-07-14 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: High
A: None

Description

Improper access control in Microsoft 365 Copilot for iOS allows an unauthorized attacker to elevate privileges over a network.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
Microsoft Microsoft 365 Copilot for iOS 1.0 < 2.111.4
Microsoft Microsoft 365 Copilot for iOS 1.0 < 2.111.4
microsoft 365_copilot < 2.111.4

References & Advisories (1)

Bug Bounty Relevance

66 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

8.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.79%
Raw Score 0.007870
Percentile 56.1%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00787
2026-10-28
0.00787

Intelligence Sources

mitre ref →
nvd ref →

External Links