CVE-2022-20717 Cisco SD-WAN vEdge Routers Denial of Service Vulnerability
An authenticated local attacker can cause a Cisco SD-WAN vEdge router to crash via memory exhaustion, resulting in a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-20717?
CVE-2022-20717 is a medium-severity denial of service vulnerability in Cisco SD-WAN vEdge router, published on 15 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the NETCONF process of Cisco SD-WAN vEdge Routers could allow an authenticated, local attacker to cause an affected device to run out of memory, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient memory management when an affected device receives large amounts of traffic. An attacker could exploit this vulnerability by sending malicious traffic to an affected device. A successful exploit could allow the attacker to cause the device to crash, resulting in a DoS condition.
Which versions are affected by CVE-2022-20717?
It affects 1 product.
Products include Cisco Sd-Wan Vedge Router.
How do I fix CVE-2022-20717?
No fix has been published for CVE-2022-20717 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-2022-20717 being exploited?
There is no known exploitation of CVE-2022-20717 in the wild and no public exploit code.
Sources
Also known as GHSA-g8c4-6cm2-mvxv.