CVE-2025-27377

5.3 mediumEPSS 0.2%

Medium (5.3) in altium designer. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.3 medium

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-31)
CWE: CWE-295
Published: 2026-01-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

altium:designer

References

https://www.altium.com/platform/security-compliance/security-advisories

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