Published: 13/09/2023 Updated: 25/01/2024

CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8

VMScore: 0

A vulnerability in the Connectivity Fault Management (CFM) feature of Cisco IOS XR Software could allow an unauthenticated, remote malicious user to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to incorrect processing of invalid continuity check messages (CCMs). An attacker could exploit this vulnerability by sending crafted CCMs to an affected device. A successful exploit could allow the malicious user to cause the CFM service to crash when a user displays information about maintenance end points (MEPs) for peer MEPs on an affected device.

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cisco ios xr 7.9.0
cisco ios xr

A vulnerability in the Connectivity Fault Management (CFM) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device This vulnerability is due to incorrect processing of invalid continuity check messages (CCMs) An attacker could exploit this vulnerability by ...

CWE-354 https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xr-cfm-3pWN8MKt https://nvd.nist.gov https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xr-cfm-3pWN8MKt

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CVE-2023-20233

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