CVE-2026-2491: CWE-306: Missing Authentication for Critical Function in Socomec DIRIS A-40
CVE-2026-2491 is an authentication bypass vulnerability in the Socomec DIRIS A-40 power monitoring device's HTTP API. The flaw allows network-adjacent attackers to access critical functions without authentication via the web API on TCP port 80. This affects version 1.8.1 of the product. The vulnerability has a CVSS score of 6.3, indicating a medium severity level. No official patch or vendor advisory is provided in the available data. Exploitation does not require user interaction or privileges, but no known exploits are reported in the wild.
AI Analysis
Technical Summary
The Socomec DIRIS A-40 device version 1.8.1 contains a vulnerability (CWE-306) where the HTTP API lacks authentication checks before granting access to critical functions. This allows an attacker with network adjacency to bypass authentication controls by connecting to the device's web API on TCP port 80. The vulnerability was cataloged as CVE-2026-2491 with a CVSS 3.0 base score of 6.3, reflecting low attack complexity and no required privileges or user interaction. The issue was identified by ZDI (ZDI-CAN-23993). No patch or official remediation guidance is currently available.
Potential Impact
Successful exploitation of this vulnerability allows an attacker to bypass authentication on the Socomec DIRIS A-40 device, potentially leading to unauthorized access to device functions. The CVSS vector indicates impacts to confidentiality, integrity, and availability at a low level. No known exploits are reported in the wild, but the lack of authentication poses a risk of unauthorized control or information disclosure on affected devices.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict network access to the device's TCP port 80 interface to trusted hosts only. Monitor for any vendor updates or security advisories from Socomec regarding this vulnerability.
CVE-2026-2491: CWE-306: Missing Authentication for Critical Function in Socomec DIRIS A-40
Description
CVE-2026-2491 is an authentication bypass vulnerability in the Socomec DIRIS A-40 power monitoring device's HTTP API. The flaw allows network-adjacent attackers to access critical functions without authentication via the web API on TCP port 80. This affects version 1.8.1 of the product. The vulnerability has a CVSS score of 6.3, indicating a medium severity level. No official patch or vendor advisory is provided in the available data. Exploitation does not require user interaction or privileges, but no known exploits are reported in the wild.
CVSS v3.0
Score 6.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Socomec DIRIS A-40 device version 1.8.1 contains a vulnerability (CWE-306) where the HTTP API lacks authentication checks before granting access to critical functions. This allows an attacker with network adjacency to bypass authentication controls by connecting to the device's web API on TCP port 80. The vulnerability was cataloged as CVE-2026-2491 with a CVSS 3.0 base score of 6.3, reflecting low attack complexity and no required privileges or user interaction. The issue was identified by ZDI (ZDI-CAN-23993). No patch or official remediation guidance is currently available.
Potential Impact
Successful exploitation of this vulnerability allows an attacker to bypass authentication on the Socomec DIRIS A-40 device, potentially leading to unauthorized access to device functions. The CVSS vector indicates impacts to confidentiality, integrity, and availability at a low level. No known exploits are reported in the wild, but the lack of authentication poses a risk of unauthorized control or information disclosure on affected devices.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict network access to the device's TCP port 80 interface to trusted hosts only. Monitor for any vendor updates or security advisories from Socomec regarding this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- zdi
- Date Reserved
- 2026-02-13T21:14:10.749Z
- Cvss Version
- 3.0
- State
- PUBLISHED
Threat ID: 69b47ac82f860ef943b21725
Added to database: 3/13/2026, 8:59:52 PM
Last enriched: 5/26/2026, 8:26:34 PM
Last updated: 6/13/2026, 9:29:10 PM
Views: 132
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.