CVE-2025-26858 — HIGH (8.6)

Vulnerability Description

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.

CVSS Score

8.6

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Socomec	Diris M-70 Firmware	1.6.9
Socomec	Diris M-70	-

Related Weaknesses (CWE)

CWE-20

References

https://talosintelligence.com/vulnerability_reports/TALOS-2025-2152Vendor Advisory
https://www.socomec.fr/sites/default/files/2025-10/CVE-2025-26858---Diris-DigiwaVendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2152Vendor Advisory

FAQ

What is CVE-2025-26858?

CVE-2025-26858 is a vulnerability with a CVSS score of 8.6 (HIGH). 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 s...

How severe is CVE-2025-26858?

CVE-2025-26858 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-26858?

Check the references section above for vendor advisories and patch information. Affected products include: Socomec Diris M-70 Firmware, Socomec Diris M-70.