Critical flaws found in Cisco SMB routers – again

Critical flaws found in four Cisco SMB router ranges – for the second time this year

CVE-2022-20827 is rated 9/10 and applies to all four of the abovementioned router ranges.

"This vulnerability is due to insufficient input validation," Cisco adds, and means an attacker submitting crafted input to the web filter database update feature and then execute commands on the underlying operating system with root privileges. "This vulnerability is due to insufficient validation of user-supplied input,” states Cisco's explanation of the mess, once again."An attacker could exploit this vulnerability by sending malicious input to an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying Linux operating system.

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