CVE-2025-27377
Unknown Unknown - Not Provided
TLS Certificate Validation Bypass in Altium Designer 24.9.0 Enables MITM Attack

Publication date: 2026-01-22

Last updated on: 2026-02-26

Assigner: Altium

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.
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Meta Information
Published
2026-01-22
Last Modified
2026-02-26
Generated
2026-06-16
AI Q&A
2026-01-22
EPSS Evaluated
2026-06-15
NVD
CVE-2025-27377
EUVD
EUVD-2026-4175
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
altium designer From 24.9.0 (inc) to 25.2.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-295 The product does not validate, or incorrectly validates, a certificate.
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Executive Summary

This vulnerability in Altium Designer version 24.9.0 occurs because the software does not validate self-signed server certificates for cloud connections. This means an attacker who can perform a man-in-the-middle (MITM) attack could intercept or manipulate the network traffic between the user and the cloud service.

Impact Analysis

The vulnerability could allow an attacker to intercept or manipulate network traffic, potentially exposing authentication credentials or sensitive design data to unauthorized parties.

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