{"affected":[{"defaultStatus":"unaffected","product":"MailEnable Enterprise Premium","source":"CNA: VulnCheck","vendor":"MailEnable","versions":[{"lessThan":"10.62","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-125393","cwes":["CWE-122"],"description":"MailEnable Enterprise Premium before 10.62 contains a heap overflow vulnerability in the IMAP X-FB-FETCH command that allows authenticated users to overflow a fixed 0x400-byte heap buffer. Attackers can supply an X-FB-USER address longer than about 1016 bytes, which is formatted without a length check, to crash the IMAP service and cause denial of service.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":7.1,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":6.5,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1794266877983,"publishedAt":1794266877983,"references":[{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://www.mailenable.com/Premium-ReleaseNotes.txt"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/mailenable-enterprise-premium-before-10.62-heap-overflow-via-imap-x-fb-fetch"}],"remediation":[],"revision":"5832658f38af3d14691a9326a511ff34dcd5833ba6c7c8f02fd0d3174e151601","sources":[{"modifiedAt":1794266877983,"name":"CNA: VulnCheck","retrievedAt":1794269359347,"url":"https://www.cve.org/CVERecord?id=CVE-2026-125393"}],"ssvc":null,"status":"published","title":"MailEnable Enterprise Premium before 10.62 Heap Overflow via IMAP X-FB-FETCH","updatedAt":1794269359347}