Input validation error in Cisco Systems, Inc products - CVE-2022-20688

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Main Vulnerability Database Vulnerabilities #VU67962

Input validation error in Cisco Systems, Inc products - CVE-2022-20688

Published: October 6, 2022


Vulnerability identifier: #VU67962
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-20688
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
ATA 190 Analog Telephone Adapter
ATA 191 Analog Telephone Adapter
ATA 192 Multiplatform Analog Telephone Adapter
ATA 191 Multiplatform Analog Telephone Adapter

Detailed vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to missing length validation of certain Cisco Discovery Protocol packet header fields. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


How to mitigate CVE-2022-20688

Install updates from vendor's website.

Sources