CVE-2026-40016

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

June 2, 2026

Last Seen

June 2, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Moderate DoS and Info Disclosure Vulnerabilities in Dovecot Affect Fedora 43 and 4457.1

Fedora versions 43 and 44 of Dovecot have been found to contain multiple vulnerabilities, including CVE-2026-33603, CVE-2026-40020, and CVE-2026-42006. These vulnerabilities allow for information disclosure and denial-of-service (DoS) attacks, affecting users who rely on IMAP services. Attackers cou...

Public Exploits

Checking GitHub for proof-of-concept code…

Related Clusters (1)

Moderate DoS and Info Disclosure Vulnerabilities in Dovecot Affect Fedora 43 and 44

Jun 2·3 sources

Related Entities

Denial of Service Data Breach Fedora CVE-2026-27851 CVE-2026-27857 CVE-2026-33603 CVE-2026-40020 CVE-2026-42006 CWE-200 - Exposure of Sensitive Information CWE-78 - OS Command Injection T1059 - Command and Scripting Interpreter Dovecot

CVE-2026-40016

Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Public Exploits

CVE Details

Related Clusters (1)

Moderate DoS and Info Disclosure Vulnerabilities in Dovecot Affect Fedora 43 and 44

Related Articles (2)

Fedora 43 Dovecot Suffering from Moderate DoS Info Disclosure Issues

Fedora 44 Dovecot Moderate Info Disclosure DoS Vuln 2026

Related Entities