What is CVE-2025-26858?

CVE-2025-26858 is a high-severity vulnerability in Socomec Diris Digiware M-70, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2025-12-01.

How severe is CVE-2025-26858?

High severity. CVSS v3 base score is 8.6 out of 10.

Improper input validation in Socomec Diris Digiware M-70

CVE-2025-26858

A buffer overflow vulnerability exists in the Modbus TCP functionality of Socomec DIRIS Digiware M-70 1.6.9. A specially crafted set of network packets can lead to denial of service. An attacker can send a sequence of unauthenticated packets to trigger this vulnerability.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.005 (37.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

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-20 — Improper Input Validation

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-2025-26858?: CVE-2025-26858 is a high-severity vulnerability in Socomec Diris Digiware M-70, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2025-12-01.
How severe is CVE-2025-26858?: High severity. CVSS v3 base score is 8.6 out of 10.