CVE-2025-27377
Title: Improper Certificate Validation in Altium Designer
Other
Proof Of Concept
No public PoC currently indexed for CVE-2025-27377.
CWE Category
CWE-295
Published Date
Jan 22, 2026
Modified Date
Feb 26, 2026
Exploit Status
Not Found
Score
5.3
CVSS v3.1
Exploit Probability (EPSS)
0.17%
Vulnerability Summary
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.
Impacted Vendors
Reference Links
CVSS v3.1
Source Entity
4760f414-e1ae-4ff1-bdad-c7a9c3538b79
Severity
MEDIUM
5.3
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Associated Attack Patterns (CAPEC)
Total: PatternsNo specific attack patterns mapped.
Likelihood
Severity
Page /
CVE-2025-27377 Exploits & PoCs (Proof Of Concept)
No public PoCs found in our database for this CVE.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
MODIFIED
Vulnerability data updated via NVD.
Attack Vector Matrix
Access Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
REQUIRED
CVSS Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected Stack
No specific products linked.