What’s Vulnerable › Vulnerabilities

CVE-2023-23566

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-01-13 · updated 2026-06-17
• Weakness: CWE-276

Description

A 2-Step Verification problem in Axigen 10.3.3.52 allows an attacker to access a mailbox by bypassing 2-Step Verification when they try to add an account to any third-party webmail service (or add an account to Outlook or Gmail, etc.) with IMAP or POP3 without any verification code.

Affected products

• Axigen Mail Server: 10.3.3.52

References

• https://github.com/umz-cert/vulnerabilities/issues/1
• https://github.com/umz-cert/vulnerabilitys/blob/patch-1/Axigen%20Mail%20Server%2010.3.3.52%202-Step%20verification
• https://www.axigen.com/documentation/2-step-verification-two-factor-authentication-for-webmail-p69140479
• https://www.axigen.com/mail-server/download/
• https://github.com/umz-cert/vulnerabilities/issues/1
• https://github.com/umz-cert/vulnerabilitys/blob/patch-1/Axigen%20Mail%20Server%2010.3.3.52%202-Step%20verification
• https://www.axigen.com/documentation/2-step-verification-two-factor-authentication-for-webmail-p69140479
• https://www.axigen.com/mail-server/download/

Get alerted when CVE-2023-23566 or the next vulnerability affects your stack