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TI-2026-74730 Aliases CVE-2026-17525

Incomplete cleanup in ABB My Control System exhausts disk space

Priority LOW 22CWE-459Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

ABB My Control System versions 26.4 and 26.5 are affected. Incomplete cleanup of temporary files after XML conversion (CWE-459) leaves files behind on disk. An adjacent attacker with low privileges can exhaust disk space, which disrupts the system's availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Incomplete cleanup vulnerability in ABB My Control System. This issue affects My Control System: 26.4 and 26.5.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00145 3rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ABBMy Control System26.4; 26.5—No fix listedCNA
  • My Control System VendorABB Affected 26.4; 26.5 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for My Control System.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-17525

References

Other 1

  • TI-2019-03985 ABB MicroSCADA Pro SYS600 Missing Authentication for Critical Function CVSS 3.1CRITICAL 9.8
  • TI-2019-05127 The ABB IDAL HTTP server is vulnerable to a buffer overflow when a long Host header is… CVSS 3.1HIGH 8.8
  • TI-2024-05845 Remote code execution in ABB ASPECT-Enterprise CVSS 4.0CRITICAL 9.4
  • TI-2024-34459 Service control in ABB ASPECT-Enterprise CVSS 4.0HIGH 8.8
  • TI-2024-05758 unauthorized file access CVSS 4.0CRITICAL 9.4
  • TI-2022-00806 ABB Flow Computer and Remote Controllers Path Traversal Vulnerability in Totalflow TCP protocol can lead to root access CVSS 3.1CRITICAL 9.8
See all 262 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences