CVE-2021-20637 Denial of service in LAN-W300N/PR5B
A remote attacker can cause a denial-of-service condition on LOGITEC LAN-W300N/PR5B routers by sending a specially crafted URL.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-20637?
CVE-2021-20637 is a medium-severity denial of service vulnerability in LOGITEC CORPORATION LAN-W300N/PR5B, published on 12 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Improper check or handling of exceptional conditions in LOGITEC LAN-W300N/PR5B allows a remote attacker to cause a denial-of-service (DoS) condition by sending a specially crafted URL.
Which versions are affected by CVE-2021-20637?
It affects 1 product.
Products include Logitech Lan-W300n\/Pr5b Firmware.
How do I fix CVE-2021-20637?
No fix has been published for CVE-2021-20637 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-20637 being exploited?
There is no known exploitation of CVE-2021-20637 in the wild and no public exploit code.
Other vulnerabilities in LOGITEC CORPORATION LAN-W300N/PR5B
Sources
Also known as GHSA-58p8-f8cp-3h6p.