CVE-2021-30188 Memory corruption in n/a
A stack-based buffer overflow in the CODESYS V2 runtime system allows attackers to execute arbitrary code or cause 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-2021-30188?
CVE-2021-30188 is a critical memory corruption vulnerability in n/a, published on 25 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
CODESYS V2 runtime system SP before 2.4.7.55 has a Stack-based Buffer Overflow.
Weakness: CWE-787
Which versions are affected by CVE-2021-30188?
It affects 28 products.
Products include Codesys V2 Runtime System Sp, Wago 750-8202 Firmware, Wago 750-8203 Firmware, Wago 750-8204 Firmware, Wago 750-8206 Firmware, Wago 750-8207 Firmware and 22 more.
How do I fix CVE-2021-30188?
No fix has been published for CVE-2021-30188 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-2021-30188 being exploited?
There is no known exploitation of CVE-2021-30188 in the wild and no public exploit code.
Sources
Also known as GHSA-vcv5-xrh2-qgqx.