CVE-2021-20157 Denial of service in Trendnet AC2600 TEW-827DRU
An unauthenticated attacker can force a Trendnet router to reboot by exploiting a hidden administrative command, causing a denial of service.
- 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-2021-20157?
CVE-2021-20157 is a high-severity denial of service vulnerability in Trendnet AC2600 TEW-827DRU, published on 30 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
It is possible for an unauthenticated, malicious user to force the device to reboot due to a hidden administrative command.
Which versions are affected by CVE-2021-20157?
It affects 1 product.
Products include Trendnet Tew-827dru Firmware.
How do I fix CVE-2021-20157?
No fix has been published for CVE-2021-20157 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-2021-20157 being exploited?
There is no known exploitation of CVE-2021-20157 in the wild and no public exploit code.
Other vulnerabilities in Trendnet AC2600 TEW-827DRU
Sources
Also known as GHSA-4wgm-82f7-qm8p.