CVE-2026-17525 My Control System 26.5 – Disk space exhaustion due to incorrect temporary file cleanup after XML conversion
Incomplete temporary file cleanup after XML conversion can exhaust disk space, causing denial of service in ABB My Control System.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-17525?
CVE-2026-17525 is a medium-severity denial of service vulnerability in ABB My Control System, published on 15 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Incomplete cleanup vulnerability in ABB My Control System.
This issue affects My Control System: 26.4 and 26.5.
Weakness: CWE-459
Which versions are affected by CVE-2026-17525?
How do I fix CVE-2026-17525?
No fix has been published for CVE-2026-17525 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-17525 being exploited?
There is no known exploitation of CVE-2026-17525 in the wild and no public exploit code.
Sources
Also known as GHSA-j9r2-33fg-6jg8.