One click enf4/7/2024 This vulnerability can be exploited using specific, crafted streams of packets over either IPv4 or IPv6.Ĭisco has released software updates that address this vulnerability. A successful exploit could allow the attacker to cause the enf_broker process to crash, which could lead to system instability and the inability to process or forward traffic through the affected device. An attacker could exploit this vulnerability by sending specific streams of packets to the affected device. The vulnerability is due to a logic error that occurs when an affected device processes Telnet protocol packets. In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerability.ĭetails about the vulnerabilities are as follows.ĬVE-2021-1288: Cisco IOS XR Software Enf Broker Denial of Service VulnerabilityĪ vulnerability in the ingress packet processing function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. Exploitation of one of the vulnerabilities is not required to exploit the other vulnerability. The vulnerabilities are not dependent on one another.
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