CVE-2021-1615 Cisco Embedded Wireless Controller Software for Catalyst Access Points Denial of Service Vulnerability
Unauthenticated remote attackers can cause denial of service on Cisco Catalyst Access Points by sending crafted traffic due to insufficient buffer allocation.
- 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-2021-1615?
CVE-2021-1615 is a high-severity denial of service vulnerability in Cisco IOS XE Software, published on 23 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the packet processing functionality of Cisco Embedded Wireless Controller (EWC) Software for Catalyst Access Points (APs) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected AP. This vulnerability is due to insufficient buffer allocation. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to exhaust available resources and cause a DoS condition on an affected AP, as well as a DoS condition for client traffic traversing the AP.
Weakness: CWE-410
Which versions are affected by CVE-2021-1615?
It affects 1 product.
Products include Cisco Embedded Wireless Controller.
How do I fix CVE-2021-1615?
No fix has been published for CVE-2021-1615 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-2021-1615 being exploited?
There is no known exploitation of CVE-2021-1615 in the wild and no public exploit code.
Sources
Also known as GHSA-25r3-37cq-xj9m.