CVSS Score of 10 (low)


Published Jun 20, 2023
Updated: Jan 12, 2024
CWE ID 400


CVE-2023-26432 is a vulnerability that affects multiple products, including r_8QfS, r_8QfR, r_8QfQ, and others. The vulnerability arises when processing SMTP "capabilities" responses without limitations on size. An attacker with access to a rogue SMTP service can exploit this vulnerability to trigger excessive resource usage, potentially leading to service unavailability. To remediate this vulnerability, the affected products now limit the accepted SMTP server response to a reasonable length/size. It is important for organizations to address this vulnerability promptly as it poses a medium-level risk with a base severity score of 4.3 out of 10.


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