{"schema_version":1,"title":"Open-Xchange Dovecot CE vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 8 vulnerabilities in Open-Xchange Dovecot CE: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-42006, was published on 12 May 2026.","url":"https://junglewise.ai/threats/technologies/dovecot-ce","json_url":"https://junglewise.ai/threats/technologies/dovecot-ce.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/dovecot-ce","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":3,"all_time":8,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":8},"latest":[{"cve":"CVE-2026-42006","cvss":4.3,"epss":0.0001,"slug":"cve-2026-42006-open-xchange-dovecot-uncontrolled-memory-consumption-in-imap","title":"Open-Xchange Dovecot uncontrolled memory consumption in IMAP","severity":"medium","exploited":false,"published_at":"2026-05-12T14:17:04.703+00:00","url":"https://junglewise.ai/threats/cve-2026-42006-open-xchange-dovecot-uncontrolled-memory-consumption-in-imap"},{"cve":"CVE-2026-40020","cvss":3.1,"epss":0.0001,"slug":"cve-2026-40020-open-xchange-dovecot-improper-access-control-in-imap-setacl","title":"Open-Xchange Dovecot improper access control in IMAP SETACL","severity":"low","exploited":false,"published_at":"2026-05-12T14:17:03.687+00:00","url":"https://junglewise.ai/threats/cve-2026-40020-open-xchange-dovecot-improper-access-control-in-imap-setacl"},{"cve":"CVE-2026-40016","cvss":5.3,"epss":0.0001,"slug":"cve-2026-40016-open-xchange-dovecot-cpu-limit-bypass-in-sieve-scripts","title":"Open-Xchange Dovecot CPU limit bypass in Sieve scripts","severity":"medium","exploited":false,"published_at":"2026-05-12T14:17:03.57+00:00","url":"https://junglewise.ai/threats/cve-2026-40016-open-xchange-dovecot-cpu-limit-bypass-in-sieve-scripts"},{"cve":"CVE-2026-33603","cvss":6.8,"epss":0.0001,"slug":"cve-2026-33603-open-xchange-dovecot-scram-tls-channel-binding-spoofing","title":"Open-Xchange Dovecot SCRAM TLS channel binding spoofing","severity":"medium","exploited":false,"published_at":"2026-05-12T14:17:01.6+00:00","url":"https://junglewise.ai/threats/cve-2026-33603-open-xchange-dovecot-scram-tls-channel-binding-spoofing"},{"cve":"CVE-2026-27851","cvss":7.4,"epss":0.0001,"slug":"cve-2026-27851-open-xchange-dovecot-injection-via-unsafe-variable-expansion","title":"Open-Xchange Dovecot injection via unsafe variable expansion","severity":"high","exploited":false,"published_at":"2026-05-12T14:16:56.857+00:00","url":"https://junglewise.ai/threats/cve-2026-27851-open-xchange-dovecot-injection-via-unsafe-variable-expansion"},{"cve":"CVE-2026-27858","cvss":7.5,"epss":0.0046,"slug":"cve-2026-27858-open-xchange-dovecot-denial-of-service-in-managesieve","title":"Open-Xchange Dovecot denial of service in ManageSieve","severity":"high","exploited":false,"published_at":"2026-03-27T09:16:20.073+00:00","url":"https://junglewise.ai/threats/cve-2026-27858-open-xchange-dovecot-denial-of-service-in-managesieve"},{"cve":"CVE-2026-27857","cvss":4.3,"epss":0.0039,"slug":"cve-2026-27857-open-xchange-dovecot-denial-of-service-via-noop-command-memory","title":"Open-Xchange Dovecot denial of service via NOOP command memory exhaustion","severity":"medium","exploited":false,"published_at":"2026-03-27T09:16:19.917+00:00","url":"https://junglewise.ai/threats/cve-2026-27857-open-xchange-dovecot-denial-of-service-via-noop-command-memory"},{"cve":"CVE-2025-59032","cvss":7.5,"epss":0.0041,"slug":"cve-2025-59032-open-xchange-dovecot-denial-of-service-in-managesieve","title":"Open-Xchange Dovecot denial of service in ManageSieve AUTHENTICATE","severity":"high","exploited":false,"published_at":"2026-03-27T09:16:18.933+00:00","url":"https://junglewise.ai/threats/cve-2025-59032-open-xchange-dovecot-denial-of-service-in-managesieve"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Open-Xchange Dovecot Pro","slug":"dovecot-pro","vulnerabilities":28,"url":"https://junglewise.ai/threats/technologies/dovecot-pro"}],"technology":{"hub":true,"name":"Open-Xchange Dovecot CE","slug":"dovecot-ce","vendor":{"name":"Open-Xchange","slug":"open-xchange","url":"https://junglewise.ai/threats/vendors/open-xchange"},"aliases":[],"category":"server-software","homepage":"https://www.dovecot.org/","repo_url":"https://github.com/dovecot/core","description":"Dovecot Community Edition is an open-source IMAP and POP3 server for Linux and UNIX-like systems, written with security as a primary goal.","url":"https://junglewise.ai/threats/technologies/dovecot-ce"},"most_severe":[{"cve":"CVE-2026-27858","cvss":7.5,"epss":0.0046,"slug":"cve-2026-27858-open-xchange-dovecot-denial-of-service-in-managesieve","title":"Open-Xchange Dovecot denial of service in ManageSieve","severity":"high","exploited":false,"published_at":"2026-03-27T09:16:20.073+00:00","url":"https://junglewise.ai/threats/cve-2026-27858-open-xchange-dovecot-denial-of-service-in-managesieve"},{"cve":"CVE-2025-59032","cvss":7.5,"epss":0.0041,"slug":"cve-2025-59032-open-xchange-dovecot-denial-of-service-in-managesieve","title":"Open-Xchange Dovecot denial of service in ManageSieve AUTHENTICATE","severity":"high","exploited":false,"published_at":"2026-03-27T09:16:18.933+00:00","url":"https://junglewise.ai/threats/cve-2025-59032-open-xchange-dovecot-denial-of-service-in-managesieve"},{"cve":"CVE-2026-27851","cvss":7.4,"epss":0.0001,"slug":"cve-2026-27851-open-xchange-dovecot-injection-via-unsafe-variable-expansion","title":"Open-Xchange Dovecot injection via unsafe variable expansion","severity":"high","exploited":false,"published_at":"2026-05-12T14:16:56.857+00:00","url":"https://junglewise.ai/threats/cve-2026-27851-open-xchange-dovecot-injection-via-unsafe-variable-expansion"},{"cve":"CVE-2026-33603","cvss":6.8,"epss":0.0001,"slug":"cve-2026-33603-open-xchange-dovecot-scram-tls-channel-binding-spoofing","title":"Open-Xchange Dovecot SCRAM TLS channel binding spoofing","severity":"medium","exploited":false,"published_at":"2026-05-12T14:17:01.6+00:00","url":"https://junglewise.ai/threats/cve-2026-33603-open-xchange-dovecot-scram-tls-channel-binding-spoofing"},{"cve":"CVE-2026-40016","cvss":5.3,"epss":0.0001,"slug":"cve-2026-40016-open-xchange-dovecot-cpu-limit-bypass-in-sieve-scripts","title":"Open-Xchange Dovecot CPU limit bypass in Sieve scripts","severity":"medium","exploited":false,"published_at":"2026-05-12T14:17:03.57+00:00","url":"https://junglewise.ai/threats/cve-2026-40016-open-xchange-dovecot-cpu-limit-bypass-in-sieve-scripts"},{"cve":"CVE-2026-27857","cvss":4.3,"epss":0.0039,"slug":"cve-2026-27857-open-xchange-dovecot-denial-of-service-via-noop-command-memory","title":"Open-Xchange Dovecot denial of service via NOOP command memory exhaustion","severity":"medium","exploited":false,"published_at":"2026-03-27T09:16:19.917+00:00","url":"https://junglewise.ai/threats/cve-2026-27857-open-xchange-dovecot-denial-of-service-via-noop-command-memory"},{"cve":"CVE-2026-42006","cvss":4.3,"epss":0.0001,"slug":"cve-2026-42006-open-xchange-dovecot-uncontrolled-memory-consumption-in-imap","title":"Open-Xchange Dovecot uncontrolled memory consumption in IMAP","severity":"medium","exploited":false,"published_at":"2026-05-12T14:17:04.703+00:00","url":"https://junglewise.ai/threats/cve-2026-42006-open-xchange-dovecot-uncontrolled-memory-consumption-in-imap"},{"cve":"CVE-2026-40020","cvss":3.1,"epss":0.0001,"slug":"cve-2026-40020-open-xchange-dovecot-improper-access-control-in-imap-setacl","title":"Open-Xchange Dovecot improper access control in IMAP SETACL","severity":"low","exploited":false,"published_at":"2026-05-12T14:17:03.687+00:00","url":"https://junglewise.ai/threats/cve-2026-40020-open-xchange-dovecot-improper-access-control-in-imap-setacl"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}