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.
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History
Thu, 07 Nov 2024 22:15:00 +0000
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Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2024-11-07T21:44:52.277Z
Reserved: 2021-06-15T00:00:00
Link: CVE-2021-34741
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Updated: 2024-08-04T00:19:48.129Z
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Status : Modified
Published: 2021-11-04T16:15:08.660
Modified: 2024-11-21T06:11:05.927
Link: CVE-2021-34741
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