CVE-2026-15953

ABB Protection and control IED manager PCM600 — vulnerability CVE-2026-15953

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in ABB Protection and control IED manager (PCM600). This issue affects Protection and control IED manager (PCM600): through 2.14.

CVSS 5.0Patch available

This record: live connection— last retrieved: 7 November 2026 at 15:53.

Vendor

ABB

Product

Protection and control IED manager PCM600

up to version <=2.14

Published

28 September 2026

Last modified

28 September 2026

Original source information

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

Technical description

CVSS 3.1 — vector details

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

Attack vector

LOCAL

Privileges required

LOW

User interaction

REQUIRED

Confidentiality

None

Integrity

High

Availability

None

EPSS — Exploit Prediction Scoring System

Probability of exploitation within 30 days

0.1%

Percentile

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

Patch information

The problem is corrected in the following product version: - ABB Protection and Control IED Manager (PCM600) version 2.14 Hotfix 20260923. This fixed version is available through the ABB Update Manager and ABB website: PCM600 | ABB ABB recommends that customers upgrade to the available hotfix at the earliest opportunity. Until the update can be applied, customers should follow the mitigation measures described in this advisory.

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

44/ 100

Based on CVSS 5.0, EPSS 0.1%, industrial relevance 75/100.

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.
•User interaction (for example opening a file) is required.

Operational impact & energy relevance

Limited impact on availability; the risk lies mainly with confidentiality or integrity of process data.

Assessed as relevant to the energy sector based on: Vermeld in een officiële CISA ICS Advisory, wat directe relevantie voor industriële besturingssystemen bevestigt. Productbeschrijving komt overeen met de categorie "IED", een typisch OT/ICS-componenttype. Vendor "ABB" is a known supplier of equipment for the energy sector.

Recommended defensive measures

•Apply the latest firmware or software update and validate its integrity.
•Encrypt sensitive configuration and management communication.
•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).

Industrial relevance score

75/ 100

• Mentioned in an official CISA ICS advisory, which confirms direct relevance to industrial control systems.
• Product description matches the category "IED", a typical OT/ICS component type.
• Vendor "ABB" is a known supplier of equipment for the energy sector.

Automatically classified as industrially relevant based on CISA/NVD signals (see reasons).

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

IEC 62443 mapping

IEC 62443-4-1IEC 62443-4-2FR3 · SysteemintegriteitFR4 · Vertrouwelijkheid van gegevens

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

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