CVE-2026-9550 Acrel Electrical EEMS Enterprise Power Operation and Maintenance Cloud Platform upfile path traversal
Remote attackers can exploit a path traversal vulnerability in the file upload endpoint to read or modify arbitrary files on the server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9550?
CVE-2026-9550 is a medium-severity path traversal vulnerability in Acrel Electrical EEMS Enterprise Power Operation and Maintenance Cloud Platform, published on 26 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was determined in Acrel Electrical EEMS Enterprise Power Operation and Maintenance Cloud Platform 1.3.0. Affected by this issue is some unknown functionality of the file /SubstationWEBV2/app/..;/main/upfile. Executing a manipulation of the argument path can lead to path traversal. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-22
Which versions are affected by CVE-2026-9550?
How do I fix CVE-2026-9550?
No fix has been published for CVE-2026-9550 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-9550 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9550 exists.
Sources
Also known as GHSA-fvqp-9h26-84g3.