CVE-2026-34498 L4L
Attackers can execute arbitrary OS commands on Johnson Controls Illustra Standard - L4L China due to improper input validation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-34498?
CVE-2026-34498 is a medium-severity command injection vulnerability in Johnson Controls Illustra Standard - L4L China, published on 6 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Improper input validation vulnerability in Johnson Controls Illustra Standard - L4L China on Windows allows OS Command Injection.
This issue affects Illustra Standard - L4L China: before 6.0.0.66394.
Weakness: CWE-20
Which versions are affected by CVE-2026-34498?
How do I fix CVE-2026-34498?
No fix has been published for CVE-2026-34498 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-34498 being exploited?
There is no known exploitation of CVE-2026-34498 in the wild and no public exploit code.
Sources
Also known as GHSA-4v4x-rxv4-7m53.