CVE-2020-12739 Denial of service in n/a
An unauthenticated remote attacker can cause a Fanuc CNC controller to become inaccessible, disrupting industrial operations.
- 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-2020-12739?
CVE-2020-12739 is a medium-severity denial of service vulnerability in n/a, published on 3 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A denial-of-service vulnerability in the Fanuc i Series CNC (0i-MD and 0i Mate-MD) could allow an unauthenticated, remote attacker to cause an affected CNC to become inaccessible to other devices.
Weakness: CWE-400
Which versions are affected by CVE-2020-12739?
It affects 16 products.
Products include Fanuc Power Motion I-Model a Firmware, Fanuc Series 0i-Mate D Firmware, Fanuc Series 0i-Model B Firmware, Fanuc Series 0i-Model C Firmware, Fanuc Series 0i-Model D Firmware, Fanuc Series 0i-Model F Firmware and 10 more.
How do I fix CVE-2020-12739?
No fix has been published for CVE-2020-12739 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-2020-12739 being exploited?
There is no known exploitation of CVE-2020-12739 in the wild and no public exploit code.
Sources
Also known as GHSA-qrgc-2qmf-qw4g.