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UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-2491

Socomec DIRIS A-40 HTTP API Authentication Bypass Vulnerability.

MEDIUM 6.3EPSS 0.39%

Does this matter?

Lower severity and a low EPSS score (0.39%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.0
6.3 MEDIUMCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS
0.39% probability · 32th percentile
CISA KEV
Not listed
Weakness
CWE-306
Source
zdi-disclosures@trendmicro.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.