Medium severity · published Oct 15, 2026
CVE-2026-17525
My Control System 26.5 – Disk space exhaustion due to incorrect temporary file cleanup after XML conversion
5.2
CVSS
0.1%
EPSS
No
On KEV
Description
Incomplete cleanup vulnerability in ABB My Control System.
This issue affects My Control System: 26.4 and 26.5.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MC
My Control System · ABB
26.4; 26.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-17525
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-17525
search.abb.com
https://search.abb.com/library/Download.aspx?DocumentID=7PAA025438&LanguageCode=en&DocumentPartId=&Action=Launch
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