CVE-2021-30063 Denial of service in n/a
Crafted OPC packets can cause a denial of service on Schneider Electric and Belden industrial security appliances.
- 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-2021-30063?
CVE-2021-30063 is a high-severity denial of service vulnerability in n/a, published on 3 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
On Schneider Electric ConneXium Tofino OPCLSM TCSEFM0000 before 03.23 and Belden Tofino Xenon Security Appliance, crafted OPC packets can cause an OPC enforcer denial of service.
Which versions are affected by CVE-2021-30063?
It affects 11 products.
Products include Belden Eagle 20 Tofino 943 987-501-Tx\/Tx Firmware, Belden Eagle 20 Tofino 943 987-502 -Tx\/Mm Firmware, Belden Eagle 20 Tofino 943 987-504-Mm\/Tx Firmware, Belden Eagle 20 Tofino 943 987-505-Mm\/Mm Firmware, Belden Tofino Argon Fa-Tsa-100-Tx\/Tx Firmware, Belden Tofino Argon Fa-Tsa-220-Mm\/Mm Firmware and 5 more.
How do I fix CVE-2021-30063?
No fix has been published for CVE-2021-30063 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-2021-30063 being exploited?
There is no known exploitation of CVE-2021-30063 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-922p-95r7-82vf.