CVE-2019-6550 Memory corruption in WebAccess/SCADA
Remote attackers can execute arbitrary code on Advantech WebAccess/SCADA systems via stack-based buffer overflows caused by improper input validation.
- 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-2019-6550?
CVE-2019-6550 is a critical memory corruption vulnerability in Advantech Webaccess, published on 5 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Advantech WebAccess/SCADA, Versions 8.3.5 and prior. Multiple stack-based buffer overflow vulnerabilities, caused by a lack of proper validation of the length of user-supplied data, may allow remote code execution.
Which versions are affected by CVE-2019-6550?
It affects 1 product.
Products include Advantech Webaccess.
How do I fix CVE-2019-6550?
No fix has been published for CVE-2019-6550 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-2019-6550 being exploited?
There is no known exploitation of CVE-2019-6550 in the wild and no public exploit code.
Other vulnerabilities in Advantech Webaccess
- CVE-2014-9208 Multiple stack-based buffer overflows in unspecified DLL files in Advantech WebAccess before 8.0.1 allow remote attackers to execute arbitra
- CVE-2021-33023 Advantech WebAccess
- CVE-2021-38389 Advantech WebAccess
- CVE-2021-38408 Memory corruption in Advantech WebAccess
- CVE-2020-12019 Memory corruption in WebAccess Node
Sources
Also known as GHSA-m53j-r3hw-w76p.