{"id":"CVE-2026-94184","aliases":[],"cve":{"records":[{"id":"CVE-2026-94184","source":"redhat","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-21T01:48:54.590Z","published":"2026-09-21T14:17:16.053Z","modified":"2026-11-11T12:59:08.061Z"}],"publishers":[{"name":"redhat","role":"CNA","organizationId":"53f830b8-0a3f-465b-8143-3b8a9948e749","modified":"2026-11-11T12:59:08.061Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-09-24T14:16:19.205Z"},{"name":"CVE","role":"ADP","organizationId":"af854a3a-2127-422b-91ae-364da2661108","modified":"2026-09-23T03:09:26.497Z"}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:85959","tags":["vendor-advisory","x_refsource_REDHAT"],"source":"redhat"},{"url":"https://access.redhat.com/errata/RHSA-2026:86981","tags":["vendor-advisory","x_refsource_REDHAT"],"source":"redhat"},{"url":"https://access.redhat.com/errata/RHSA-2026:86982","tags":["vendor-advisory","x_refsource_REDHAT"],"source":"redhat"},{"url":"https://access.redhat.com/errata/RHSA-2026:98480","tags":["vendor-advisory","x_refsource_REDHAT"],"source":"redhat"},{"url":"https://access.redhat.com/errata/RHSA-2026:98583","tags":["vendor-advisory","x_refsource_REDHAT"],"source":"redhat"},{"url":"https://access.redhat.com/security/cve/CVE-2026-94184","tags":["vdb-entry","x_refsource_REDHAT"],"source":"redhat"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2531984","tags":[],"source":"redhat"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2537395","tags":["issue-tracking","x_refsource_REDHAT"],"source":"redhat"},{"url":"https://gitlab.com/fetchmail/fetchmail/-/commit/cb5be5c38471eec19e519ace0bc569176317ea92","tags":[],"source":"redhat"},{"url":"https://www.fetchmail.info/fetchmail-SA-2026-01.txt","tags":[],"source":"redhat"},{"url":"https://www.openwall.com/lists/oss-security/2026/06/27/8","tags":[],"source":"redhat"},{"url":"http://www.openwall.com/lists/oss-security/2026/09/23/1","tags":[],"source":"CVE"}],"weaknesses":[{"id":"CWE-121","description":"Stack-based Buffer Overflow","source":"redhat"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-09-22T03:55:50.026928Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"Fetchmail: fetchmail: stack-based buffer overflow in ntlm authentication (fetchmail-sa-2026-01)","titleSource":"redhat","descriptionSource":"redhat","description":"A stack-based buffer overflow flaw was found in fetchmail when built with NTLM support. A malicious or compromised mail server advertising NTLM authentication can send a crafted Type 2 challenge that causes fetchmail to write past a fixed stack buffer while building the NTLM authenticate response. This may lead to remote code execution depending on stack-frame layout, or to authentication failure or process termination under memory hardening.","score":8.1,"severity":"high","published":"2026-09-21T14:17:16.053Z","modified":"2026-11-11T12:59:08.061Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 10","platforms":[],"versions":[{"version":"0:6.4.38-3.el10_2.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:10.2"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-94184"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 10","platforms":[],"versions":[{"version":"0:6.4.38-3.el10_3.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:10.3"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-94184"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 8","platforms":[],"versions":[{"version":"0:6.4.24-1.el8_10.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:8::appstream"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-94184"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 9","platforms":[],"versions":[{"version":"0:6.4.24-1.el9_8.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:9::appstream"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-94184"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 9","platforms":[],"versions":[{"version":"0:6.4.24-1.el9_9.1","status":"unaffected","lessThan":"*","versionType":"rpm"}],"defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:9::appstream"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-94184"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 6","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/o:redhat:rhel_els:6"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-94184"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 7","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/o:redhat:rhel_els:7"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-94184"}],"remediation":[{"text":"Rebuild fetchmail without --enable-NTLM (omit NTLM at configure time). Confirm with `fetchmail -V` that the build does not list +NTLM.","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-94184"}],"references":["https://access.redhat.com/errata/RHSA-2026:85959","https://access.redhat.com/errata/RHSA-2026:86981","https://access.redhat.com/errata/RHSA-2026:86982","https://access.redhat.com/errata/RHSA-2026:98480","https://access.redhat.com/errata/RHSA-2026:98583","https://access.redhat.com/security/cve/CVE-2026-94184","https://bugzilla.redhat.com/show_bug.cgi?id=2531984","https://bugzilla.redhat.com/show_bug.cgi?id=2537395","https://gitlab.com/fetchmail/fetchmail/-/commit/cb5be5c38471eec19e519ace0bc569176317ea92","https://www.fetchmail.info/fetchmail-SA-2026-01.txt","https://www.openwall.com/lists/oss-security/2026/06/27/8","http://www.openwall.com/lists/oss-security/2026/09/23/1"],"sources":[{"name":"CVE","id":"CVE-2026-94184","modified":"2026-11-11T12:59:08.061Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-94184"}],"assessments":[{"source":"redhat","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},{"source":"CISA-ADP","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1}],"sourceAffected":[],"observedAt":"2026-11-11T13:20:30.178Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T23:00:32.916Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-06T03:25:35.644Z","attemptedAt":"2026-11-06T03:25:35.644Z"},{"source":"GHSA","status":"available","checkedAt":"2026-11-06T03:25:36.031Z","attemptedAt":"2026-11-06T03:25:36.031Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-06T03:25:36.258Z","attemptedAt":"2026-11-06T03:25:36.258Z"},{"source":"EPSS","status":"available","checkedAt":"2026-11-06T03:25:35.836Z","attemptedAt":"2026-11-06T03:25:35.836Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-94184","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-94184","modified":"2026-11-06T02:18:00.317","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","checkedAt":"2026-11-06T03:25:35.644Z"},{"source":"NVD","id":"CVE-2026-94184","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-94184","modified":"2026-11-06T02:18:00.317","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-11-06T03:25:35.644Z"},{"source":"FIRST EPSS","id":"CVE-2026-94184","url":"https://www.first.org/epss/","probability":0.01195,"percentile":0.68184,"date":"2026-11-05","checkedAt":"2026-11-06T03:25:35.836Z"},{"source":"GitHub Advisory Database","id":"GHSA-5pfw-5pv2-2pc6","url":"https://github.com/advisories/GHSA-5pfw-5pv2-2pc6","modified":"2026-10-21T15:43:39Z","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-11-06T03:25:36.031Z"},{"source":"ENISA EUVD","id":"EUVD-2026-83923","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-83923","modified":"Nov 6, 2026, 2:12:49 AM","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-11-06T03:25:36.258Z"}],"aiSummary":{"text":"Fetchmail has a stack-based buffer overflow flaw when built with NTLM support, potentially causing authentication failure or process termination. A malicious mail server can send a crafted Type 2 challenge. The impact may depend on stack-frame layout.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-11T13:21:04.702Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-94184"}]}}