Cisco has patched security vulnerabilities in four packages of SD-WAN Solution software that address buffer overflow, arbitrary file override and privilege access weaknesses that could have led to denial-of-service attacks or access problems.

The first patch, called “Critical” by Cisco, fixes a vulnerability in the vContainer of the Cisco SD-WAN Solution that could let an authenticated, remote attacker cause a denial of service (DoS) and execute arbitrary code as the root user, the company wrote in a security advisory.

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