CVE-2021-33485 Memory corruption in n/a
A heap-based buffer overflow in CODESYS Control Runtime allows attackers to execute arbitrary code or cause 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-2021-33485?
CVE-2021-33485 is a critical memory corruption vulnerability in Codesys Control Runtime System Toolkit, published on 3 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
CODESYS Control Runtime system before 3.5.17.10 has a Heap-based Buffer Overflow.
Which versions are affected by CVE-2021-33485?
It affects 7 products.
Products include Codesys Control, Codesys Control Rte, Codesys Control Runtime System Toolkit, Codesys Control Win Sl, Codesys Embedded Target Visu Toolkit, Codesys Hmi and 1 more.
How do I fix CVE-2021-33485?
No fix has been published for CVE-2021-33485 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-33485 being exploited?
There is no known exploitation of CVE-2021-33485 in the wild and no public exploit code.
Other vulnerabilities in Codesys Control Runtime System Toolkit
Sources
Also known as GHSA-mrr3-f59g-2946.