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.
Published: 2026-01-22
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Thu, 26 Feb 2026 22:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:altium:designer:*:*:*:*:*:*:*:*

Fri, 23 Jan 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Altium
Altium designer
Vendors & Products Altium
Altium designer

Thu, 22 Jan 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 22 Jan 2026 00:45:00 +0000

Type Values Removed Values Added
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.
Title Missing Validation of Self-Signed Certificates in Altium Designer Allows Man-in-the-Middle Attacks
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Altium

Published:

Updated: 2026-01-22T14:41:16.446Z

Reserved: 2025-02-23T21:02:12.105Z

Link: CVE-2025-27377

cve-icon Vulnrichment

Updated: 2026-01-22T14:41:13.110Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-22T01:15:50.510

Modified: 2026-02-26T21:49:17.963

Link: CVE-2025-27377

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-22T10:08:14Z

Weaknesses