Multiple vulnerabilities in the Zone-Based Firewall feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload or stop forwarding traffic through the firewall. The vulnerabilities are due to incomplete handling of Layer 4 packets through the device. An attacker could exploit these vulnerabilities by sending a certain sequence of traffic patterns through the device. A successful exploit could allow the attacker to cause the device to reload or stop forwarding traffic through the firewall, resulting in a denial of service. For more information about these vulnerabilities, see the Details section of this advisory.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2020-09-24T18:01:32.351112Z
Updated: 2024-09-16T18:55:40.734Z
Reserved: 2019-12-12T00:00:00
Link: CVE-2020-3421
Vulnrichment
No data.
NVD
Status : Modified
Published: 2020-09-24T18:15:18.917
Modified: 2023-11-07T03:22:41.670
Link: CVE-2020-3421
Redhat
No data.