CVE-2026-13599

ABB Ability Edgenius — vulnerability CVE-2026-13599

Missing authentication for critical function vulnerability in ABB Ability Edgenius. This issue affects Ability Edgenius: through 3.2.3.0.

CVSS 7.8No patch available

This record: live connection— last retrieved: 7 November 2026 at 14:22.

Vendor

ABB

Product

Ability Edgenius

up to version <=3.2.3.0

Published

22 October 2026

Last modified

23 October 2026

Original source information

Taken directly from NVD, CISA or the vendor — sometimes in English, unchanged from the source.

Technical description

Missing authentication for critical function vulnerability in ABB Ability Edgenius. This issue affects Ability Edgenius: through 3.2.3.0.

CVSS 3.1 — vector details

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

Attack vector

LOCAL

Privileges required

LOW

User interaction

NONE

Confidentiality

High

Integrity

High

Availability

High

EPSS — Exploit Prediction Scoring System

Probability of exploitation within 30 days

0.1%

Percentile

Source: FIRST.org, updated on 6 November 2026.

Patch information

Workarounds are specific measures that a user can take to help block an attack, for example, temporarily disabling the vulnerable feature may remove exposure with well-known impact on functionality. For brownfield customers, ABB provides a Kubernetes network policy that restricts access to Edge Authentication Database (AuthDB) to the authorized services required for normal operation of an already deployed and configured system. For implementation details, refer to Technical Description-ABB Ability Edgenius Missing Authentication in Edgenius AuthDB.docx (7PAA025722) listed in the reference section, distributed separately.

IACS Radar assessment

Our own interpretation and context for the source data above.

IACS Radar assessment

Our own interpretation and context for this vulnerability — not an official source.

IACS Radar priority score

47/ 100

Based on CVSS 7.8, EPSS 0.1%, industrial relevance 55/100.

Combines CVSS, EPSS, KEV status, industrial relevance and exposure relevance — a complement to, not a replacement for, the individual scores below and above.

Conditions for exploitation

•Local or adjacent access to the device is required.
•Limited user privileges are required.
•No user interaction required.

Operational impact & energy relevance

Possible loss of visibility of or control over the process upon successful exploitation.

Assessed as relevant to the energy sector based on: Vermeld in een officiële CISA ICS Advisory, wat directe relevantie voor industriële besturingssystemen bevestigt. Vendor "ABB" is a known supplier of equipment for the energy sector.

Recommended defensive measures

•Change default or hardcoded credentials and restrict access to the management interface.
•Restrict network access to the affected device to a dedicated OT management segment.
•Implement network segmentation in line with zones and conduits (IEC 62443-3-2).
•Monitor for abnormal protocol traffic using an OT-aware detection system.

Industrial relevance score

55/ 100

• Mentioned in an official CISA ICS advisory, which confirms direct relevance to industrial control systems.
• Vendor "ABB" is a known supplier of equipment for the energy sector.

Classification is provisional; manual verification by an OT security analyst is recommended.

Classified by IACS Radar-analysepijplijn (geautomatiseerd) on 7 November 2026.

IEC 62443 mapping

IEC 62443-4-2FR1 · Identificatie- en authenticatiebeheer

Automatic IACS Radar assessment based on the reported CWE weakness classification; not an official certification statement.

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