CVE-2023-20072 | BDVDB-2026-197983 Detail

Description#

A vulnerability in the fragmentation handling code of tunnel protocol packets in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected system to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to the improper handling of large fragmented tunnel protocol packets. One example of a tunnel protocol is Generic Routing Encapsulation (GRE). An attacker could exploit this vulnerability by sending crafted fragmented packets to an affected system. A successful exploit could allow the attacker to cause the affected system to reload, resulting in a DoS condition. Note: Only traffic directed to the affected system can be used to exploit this vulnerability.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12023-03-23Record published in the CVE List.
2. Version 22024-10-28Most recent update recorded in the CVE List.