CVE-2025-27377
Altium Designer version 24.9.0 does not validate self-signed server certificates for cloud connections. An attacker capable of performing a man-in-the-middle (MITM) attack could exploit this issue to intercept or manipulate network traffic, potentially exposing authentication credentials or sensitive design data.
Published:Jan 22, 2026
Last Modified:Feb 26, 2026
EPS:Jan 22, 2026
EPSS Score:0.00021
CVSS Score:5.3
Affected Products
Vendor
Product
Action
Vendor
Altium
Product
Designer
Altium
Designer
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
