What is CVE-2025-20085?

CVE-2025-20085 is a high-severity vulnerability in Socomec Diris Digiware M-70, classified under Missing Authentication for Critical Function. CVSS score: 7.2/10. Published 2025-12-01.

How severe is CVE-2025-20085?

High severity. CVSS v3 base score is 7.2 out of 10.

Auth bypass in Socomec Diris Digiware M-70

CVE-2025-20085

A denial of service vulnerability exists in the Modbus RTU over TCP functionality of Socomec DIRIS Digiware M-70 1.6.9. A specially crafted network packet can lead to denial of service and weaken credentials resulting in default documented credentials being applied to the device. An attacker can send an unauthenticated packet to trigger this vulnerability.

Vulnerability class: Broken Authentication

EPSS: 0.002 (15.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Socomec Diris Digiware M-70 — versions 1.6.9
Socomec Diris_m-70
Socomec Diris_m-70_firmware — versions 1.6.9

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

talos-cna@cisco.com (Vendor Advisory)
talos-cna@cisco.com (Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20085?: CVE-2025-20085 is a high-severity vulnerability in Socomec Diris Digiware M-70, classified under Missing Authentication for Critical Function. CVSS score: 7.2/10. Published 2025-12-01.
How severe is CVE-2025-20085?: High severity. CVSS v3 base score is 7.2 out of 10.