CVE-2021-38408 Memory corruption in Advantech WebAccess
A stack-based buffer overflow in Advantech WebAccess allows remote attackers to execute arbitrary code via crafted input.
- 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-2021-38408?
CVE-2021-38408 is a critical memory corruption vulnerability in Advantech Webaccess, published on 9 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A stack-based buffer overflow vulnerability in Advantech WebAccess Versions 9.02 and prior caused by a lack of proper validation of the length of user-supplied data may allow remote code execution.
Weakness: CWE-121
Which versions are affected by CVE-2021-38408?
It affects 1 product.
Products include Advantech Webaccess.
How do I fix CVE-2021-38408?
No fix has been published for CVE-2021-38408 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-2021-38408 being exploited?
There is no known exploitation of CVE-2021-38408 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-2020-12019 Memory corruption in WebAccess Node
- CVE-2020-10638 Memory corruption in Advantech WebAccess Node
Sources
Also known as GHSA-pc3j-ph7x-cxh4.