What is CVE-2026-2491?

CVE-2026-2491 is a medium-severity vulnerability in Socomec Diris A-40, classified under Missing Authentication for Critical Function. CVSS score: 6.3/10. Published 2026-03-13.

How severe is CVE-2026-2491?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Auth bypass in Socomec Diris A-40

CVE-2026-2491

Socomec DIRIS A-40 HTTP API Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Socomec DIRIS A-40 power monitoring devices. Authentication is not…

Vulnerability class: Broken Authentication

EPSS: 0.001 (26.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Socomec Diris A-40 — versions 1.8.1

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

ZDI-26-129 (x_research-advisory)
vendor-provided URL (vendor-advisory)

Frequently asked questions

What is CVE-2026-2491?: CVE-2026-2491 is a medium-severity vulnerability in Socomec Diris A-40, classified under Missing Authentication for Critical Function. CVSS score: 6.3/10. Published 2026-03-13.
How severe is CVE-2026-2491?: Medium severity. CVSS v3 base score is 6.3 out of 10.