CVE-2021-20094 Denial of service in Wibu-Systems CodeMeter
An unauthenticated remote attacker can crash the CodeMeter Runtime Server, causing a denial of service.
- 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-2021-20094?
CVE-2021-20094 is a high-severity denial of service vulnerability in Wibu-Systems CodeMeter, published on 16 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A denial of service vulnerability exists in Wibu-Systems CodeMeter versions < 7.21a. An unauthenticated remote attacker can exploit this issue to crash the CodeMeter Runtime Server.
Weakness: CWE-125
Which versions are affected by CVE-2021-20094?
It affects 3 products.
Products include Siemens Pss Cape, Siemens Sicam 230 Firmware, Wibu Codemeter.
How do I fix CVE-2021-20094?
No fix has been published for CVE-2021-20094 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-2021-20094 being exploited?
There is no known exploitation of CVE-2021-20094 in the wild and no public exploit code.
Other vulnerabilities in Wibu-Systems CodeMeter
Sources
Also known as GHSA-fm8v-xp26-8h3q.