Cisco security patches for switches, firewalls

Cisco has bundled 25 security advisories that describe 26 vulnerabilities in Cisco NX-OS switch and Firepower FXOS firewall software. While the 26 alerts describe vulnerabilities that have a Security Impact Rating of “High,” most –23 – affect Cisco NX-OS software, and the remaining three involve both software packages.

The vulnerabilities span a number of problems that would let an attacker gain unauthorized access, gain elevated privileges, execute arbitrary commands, escape the restricted shell, bypass the system image verification checks or cause denial of service (DoS) conditions, Cisco said. It has released software fixes for all the vulnerabilities, and none of the problems affect Cisco IOS software or Cisco IOS XE software, the company said. Information about which Cisco FXOS Software and Cisco NX-OS Software releases are vulnerable and what to do about it is available in the fixed software section of the advisory.