CVE-2021-45734 Denial of service in n/a
Attackers can cause a Denial of Service on TOTOLINK X5000R routers via a stack overflow in the setUrlFilterRules function.
- 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-2021-45734?
CVE-2021-45734 is a high-severity denial of service vulnerability in Totolink X5000r Firmware, published on 4 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
TOTOLINK X5000R v9.1.0u.6118_B20201102 was discovered to contain a stack overflow in the function setUrlFilterRules. This vulnerability allows attackers to cause a Denial of Service (DoS) via the url parameter.
Which versions are affected by CVE-2021-45734?
It affects 1 product.
Products include Totolink X5000r Firmware.
How do I fix CVE-2021-45734?
No fix has been published for CVE-2021-45734 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-2021-45734 being exploited?
There is no known exploitation of CVE-2021-45734 in the wild and no public exploit code.
Other vulnerabilities in Totolink X5000r Firmware
Sources
Also known as GHSA-84hw-gj94-jqrm.