Is CVE-2026-2491 actively exploited?

No active exploitation of CVE-2026-2491 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-2491 be exploited remotely?

Partially. CVE-2026-2491 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-2491?

CVE-2026-2491 has a CVSS score of 6.3 (MEDIUM).

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MEDIUM

CVE-2026-2491

CWE-306Published: March 16, 2026· Updated: Mar 16, 2026

6.3

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.0th

Official Description

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 required to exploit this vulnerability.

The specific flaw exists within the web API implementation, which listens on TCP port 80 by default. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-23993.

NVD Source

Technical Analysis

CVE-2026-2491 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.