ABB PCM600 Hotfix Blocks Project-Import Path Traversal
Tech GuruQuick Answer
The authority published 2NGA003179 for ABB Protection and Control IED Manager PCM600 version 2.14 and earlier. ABB is aware of a privately reported vulnerability affecting the PCM600 project import functionality. An update is available that resolves this vulnerability in the affected product versions. A specially crafted PCM600 project archive may exploit insufficient validation of archive entry paths during project import. Successful exploitation could allow an attacker to create or overwrite files outside the intended extraction directory using the permissions of the importing user. A vulnerability exists in the processing of PCM600 project archives files. Insufficient validation of archive entry paths may permit path traversal during extraction, potentially allowing files to be written to locations outside the intended extraction directory. Affected deployments should be matched to the authority's exact scope and moved to the supported fixed release.
Confirm Scope And Apply The Supported Fix
What to do now: Inventory ABB Protection and Control IED Manager PCM600 version 2.14 and earlier, match the exact affected release or feature, apply the authority-supported fixed build or service remediation, validate the dependent workflow, and preserve evidence.
Last verified: 2026-09-28 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.
Scope And Authority
| Product scope | ABB Protection and Control IED Manager PCM600 version 2.14 and earlier |
|---|---|
| Advisory | 2NGA003179 |
| CVE | CVE-2026-15953 |
| Authoritative release date | 2026-09-28 00:30:00 UTC (ABB CSAF initial release); added to the ABB CSAF feed at 2026-09-28 12:05:00 UTC |
| Authority revision date | 2026-09-28 00:30:00.000 UTC |
| Affected versions | ABB PCM600 version 2.14 and earlier when a user imports a crafted project archive. |
| Fixed version | ABB PCM600 2.14 Hotfix 20260923 through ABB Update Manager or the ABB PCM600 download channel |
| CVSS base score | 5.0 (CVSS v3.1) |
| CVSS severity | Medium |
| Exploitation status | Not stated by the authority; no exploitation claim is inferred. |
What Changed
ABB is aware of a privately reported vulnerability affecting the PCM600 project import functionality. An update is available that resolves this vulnerability in the affected product versions. A specially crafted PCM600 project archive may exploit insufficient validation of archive entry paths during project import. Successful exploitation could allow an attacker to create or overwrite files outside the intended extraction directory using the permissions of the importing user. A vulnerability exists in the processing of PCM600 project archives files. Insufficient validation of archive entry paths may permit path traversal during extraction, potentially allowing files to be written to locations outside the intended extraction directory.
What To Validate Now
- Inventory. Locate ABB Protection and Control IED Manager PCM600 version 2.14 and earlier deployments, versions, enabled features, exposure paths, owners, and dependent services.
- Establish applicability. Compare each deployment with the authority's affected-version statement: ABB PCM600 version 2.14 and earlier when a user imports a crafted project archive. Do not infer applicability from product family or severity alone.
- Remediate. Apply ABB PCM600 2.14 Hotfix 20260923 through ABB Update Manager or the ABB PCM600 download channel through the supported vendor or project channel, following the current advisory and change-control requirements.
- Validate. Confirm the resulting version or managed-service state, exercise representative functionality and recovery paths, monitor for regressions, and document exceptions.
- Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.
Operational Cautions
Use the exact supported release stream and repository. Test dependencies, clusters, integrations, and rollback before broad deployment; a CVSS rating or reachable feature is not evidence of exploitation.
Evidence To Retain
- Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
- UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
- Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.
Related TechGeeks Resources
Authoritative References
Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.
