CVE-2021-26112 Memory corruption in Fortinet FortiWAN
Unauthenticated attackers can execute arbitrary code on FortiWAN devices via stack-based buffer overflows in network daemons or the CLI.
- 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-2021-26112?
CVE-2021-26112 is a high-severity memory corruption vulnerability in Fortinet FortiWAN, published on 6 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Multiple stack-based buffer overflow vulnerabilities [CWE-121] both in network daemons and in the command line interpreter of FortiWAN before 4.5.9 may allow an unauthenticated attacker to potentially corrupt control data in memory and execute arbitrary code via specifically crafted requests.
Weakness: CWE-787
Which versions are affected by CVE-2021-26112?
It affects 1 product.
Products include Fortinet Fortiwan.
How do I fix CVE-2021-26112?
No fix has been published for CVE-2021-26112 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-2021-26112 being exploited?
There is no known exploitation of CVE-2021-26112 in the wild and no public exploit code.
Other vulnerabilities in Fortinet FortiWAN
Sources
Also known as GHSA-fx4p-5h4m-vvxr.