CVE-2026-36501 Denial of service in n/a
Attackers can cause a Denial of Service in the Controller library via crafted input to the Externalizable.readExternal component.
- 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-2026-36501?
CVE-2026-36501 is a high-severity denial of service vulnerability in n/a, published on 5 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue in the Externalizable.readExternal() component of Controller v12.0.5 allows attackers to cause a Denial of Service (DoS) via a crafted input.
Weakness: CWE-20
Which versions are affected by CVE-2026-36501?
How do I fix CVE-2026-36501?
No fix has been published for CVE-2026-36501 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-2026-36501 being exploited?
There is no known exploitation of CVE-2026-36501 in the wild and no public exploit code.
Sources
Also known as GHSA-w86h-g567-v7h5.