A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to perform a denial of service (DoS) attack against an affected device. This vulnerability is due to insufficient input validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email through Cisco ESA. A successful exploit could allow the attacker to exhaust all the available CPU resources on an affected device for an extended period of time, preventing other emails from being processed and resulting in a DoS condition.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: cisco

Published: 2021-11-03T00:00:00

Updated: 2021-11-04T15:40:17

Reserved: 2021-06-15T00:00:00


Link: CVE-2021-34741

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2021-11-04T16:15:08.660

Modified: 2023-11-07T03:36:16.467


Link: CVE-2021-34741

JSON object: View

cve-icon Redhat Information

No data.

CWE