Dashboard / CVE-2026-80098

CVE-2026-80098

CRITICAL
INFO Priority: 0.05 BB Relevance: 79/100
Published: 2026-09-03 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Integ. Impact Scope Change

CVSS Vector Breakdown

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

Description

Improper verification of cryptographic signature in Copilot Studio allows an unauthorized attacker to elevate privileges over a network.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
Microsoft Microsoft Copilot Studio -

References & Advisories (1)

Bug Bounty Relevance

79 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N/E:U/RL:O/RC:C

EPSS — Exploitation Probability

0.49%
Raw Score 0.004880
Percentile 42.0%
Date 2026-10-30

Intelligence Sources

mitre ref →

External Links