Cisco has released a security advisory to address Cisco products affected by vulnerabilities (CVE-2021-33193, CVE-2021-34798, CVE-2021-36160, CVE-2021-39275, CVE-2021-40438) in Apache HTTP Server 2.4.48 and earlier releases. An unauthenticated remote attacker could exploit these vulnerabilities to take control of an affected system.

The full list of affected products and fixed releases can be found in the Cisco security advisory - cisco.com.