CVE-2025-27377
Medium
Description
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductAltium Designer
PublishedJan 22, 2026
First seenJan 22, 2026
Weakness typeCWE-295CWE-295
How to fix
Update
- altium designer25.2.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| altium designer | 24.9.0 ≤ v < 25.2.0 | 25.2.0 |
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