CVE-2022-20731 Cisco Catalyst Digital Building Series Switches and Cisco Catalyst Micro Switches Vulnerabilities
Attackers can execute persistent code at boot time or cause permanent denial of service on Cisco Catalyst switches.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-20731?
CVE-2022-20731 is a medium-severity code injection vulnerability in Cisco IOS ROMMON Software, 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
Multiple vulnerabilities that affect Cisco Catalyst Digital Building Series Switches and Cisco Catalyst Micro Switches could allow an attacker to execute persistent code at boot time or to permanently prevent the device from booting, resulting in a permanent denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory.
Which versions are affected by CVE-2022-20731?
It affects 2 products.
Products include Cisco Catalyst Digital Building Series Switches Firmware, Cisco Ios Rommon.
How do I fix CVE-2022-20731?
No fix has been published for CVE-2022-20731 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2022-20731 being exploited?
There is no known exploitation of CVE-2022-20731 in the wild and no public exploit code.
Sources
Also known as GHSA-r38r-g64f-728h.