nginx vulnerability: memory overflow via SMTP server module

A security flaw in nginx's ngx_mail_smtp module allows attackers to force reading at an unauthorized memory address.

Published 9sem1 sourceImportant

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The fact

This vulnerability affects mail servers using nginx proxy server to handle SMTP connections.

A software patch is necessary to prevent exploitation attempts and information disclosure.

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Auto-synthesis from 1 media source · identified on May 14, 2026