CVE-2025-27377

MEDIUM
2026-01-22 4760f414-e1ae-4ff1-bdad-c7a9c3538b79
Authentication Bypass Designer
5.3
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 22, 2026 - 01:15 nvd
MEDIUM 5.3

DescriptionNVD

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.

AnalysisAI

Altium Designer version 24.9.0 does not validate self-signed server certificates for cloud connections. [CVSS 5.3 MEDIUM]

Technical ContextAI

Classified as CWE-295 (Improper Certificate Validation). Affects Designer. 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.

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

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CVE-2025-27377 vulnerability details – vuln.today
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