{"schema_version":1,"title":"Exim vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 14 vulnerabilities in Exim: 4 in the last 7 days and 6 in the last 90 days, 6 of them critical and 5 exploited in the wild. The most recent, CVE-2026-94057, was published on 19 September 2026. 1 technology has a page of its own.","url":"https://junglewise.ai/threats/vendors/exim","json_url":"https://junglewise.ai/threats/vendors/exim.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/vendors/exim","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"vendor","counts":{"high":5,"all_time":14,"critical":6,"exploited":5,"last_7_days":4,"last_30_days":4,"last_90_days":6,"last_365_days":8},"latest":[{"cve":"CVE-2026-94057","cvss":4,"epss":0.002,"slug":"cve-2026-94057-exim-before-4-100-1-allows-smtp-smuggling-in-which-the-received","title":"Exim SMTP smuggling in DATA phase rejection handling","severity":"medium","exploited":false,"published_at":"2026-09-19T23:17:11.257+00:00","url":"https://junglewise.ai/threats/cve-2026-94057-exim-before-4-100-1-allows-smtp-smuggling-in-which-the-received"},{"cve":"CVE-2026-94056","cvss":7.5,"epss":0.0036,"slug":"cve-2026-94056-exim-before-4-100-1-when-proxy-protocol-is-used-with-an-attacker","title":"Exim Proxy Protocol stack memory disclosure","severity":"high","exploited":false,"published_at":"2026-09-19T23:17:11.113+00:00","url":"https://junglewise.ai/threats/cve-2026-94056-exim-before-4-100-1-when-proxy-protocol-is-used-with-an-attacker"},{"cve":"CVE-2026-94055","cvss":3.7,"epss":0.0029,"slug":"cve-2026-94055-exim-before-4-100-1-when-certain-non-default-tls-settings-are","title":"Exim before 4.100.1, when certain non-default TLS settings are used with GnuTLS, has a use-after-free.","severity":"low","exploited":false,"published_at":"2026-09-19T23:17:10.973+00:00","url":"https://junglewise.ai/threats/cve-2026-94055-exim-before-4-100-1-when-certain-non-default-tls-settings-are"},{"cve":"CVE-2026-94054","cvss":7,"epss":0.0027,"slug":"cve-2026-94054-exim-before-4-100-1-when-proxy-protocol-is-used-with-an-attacker","title":"Exim out-of-bounds write in Proxy Protocol v1","severity":"high","exploited":false,"published_at":"2026-09-19T23:17:10.827+00:00","url":"https://junglewise.ai/threats/cve-2026-94054-exim-before-4-100-1-when-proxy-protocol-is-used-with-an-attacker"},{"cve":"CVE-2026-66141","cvss":7.4,"slug":"cve-2026-66141-exim-privilege-escalation-in-forward-pipe-transport-force-command","title":"Exim privilege escalation in .forward pipe transport force_command","severity":"high","exploited":false,"published_at":"2026-07-24T05:16:49.89+00:00","url":"https://junglewise.ai/threats/cve-2026-66141-exim-privilege-escalation-in-forward-pipe-transport-force-command"},{"cve":"CVE-2026-66140","cvss":8.4,"slug":"cve-2026-66140-exim-directory-traversal-in-queue-name-arguments","title":"Exim directory traversal in queue-name arguments","severity":"high","exploited":false,"published_at":"2026-07-24T05:16:49.747+00:00","url":"https://junglewise.ai/threats/cve-2026-66140-exim-directory-traversal-in-queue-name-arguments"},{"cve":"CVE-2026-48840","cvss":5.3,"slug":"cve-2026-48840-exim-stack-memory-disclosure-in-proxy-protocol-handling","title":"Exim stack memory disclosure in PROXY protocol handling","severity":"medium","exploited":false,"published_at":"2026-05-30T02:16:19.79+00:00","url":"https://junglewise.ai/threats/cve-2026-48840-exim-stack-memory-disclosure-in-proxy-protocol-handling"},{"cve":"CVE-2026-45185","cvss":9.8,"epss":0.0008,"slug":"cve-2026-45185-exim-use-after-free-in-bdat-body-parsing-with-gnutls","title":"Exim use-after-free in BDAT body parsing with GnuTLS","severity":"critical","exploited":false,"published_at":"2026-05-12T20:16:46.137+00:00","url":"https://junglewise.ai/threats/cve-2026-45185-exim-use-after-free-in-bdat-body-parsing-with-gnutls"},{"cve":"CVE-2010-4344","cvss":9.8,"slug":"cve-2010-4344-exim-heap-based-buffer-overflow-vulnerability","title":"Exim Heap-Based Buffer Overflow Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-25T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2010-4344-exim-heap-based-buffer-overflow-vulnerability"},{"cve":"CVE-2010-4345","cvss":7.8,"slug":"cve-2010-4345-exim-privilege-escalation-vulnerability","title":"Exim Privilege Escalation Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-25T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2010-4345-exim-privilege-escalation-vulnerability"},{"cve":"CVE-2019-16928","cvss":9.8,"slug":"cve-2019-16928-exim-out-of-bounds-write-vulnerability","title":"Exim Out-of-bounds Write Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2019-16928-exim-out-of-bounds-write-vulnerability"},{"cve":"CVE-2019-10149","cvss":9.8,"slug":"cve-2019-10149-exim-mail-transfer-agent-mta-improper-input-validation","title":"Exim Mail Transfer Agent (MTA) Improper Input Validation","severity":"critical","exploited":true,"published_at":"2022-01-10T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2019-10149-exim-mail-transfer-agent-mta-improper-input-validation"},{"cve":"CVE-2018-6789","cvss":9.8,"slug":"cve-2018-6789-exim-buffer-overflow-vulnerability","title":"Exim Buffer Overflow Vulnerability","severity":"critical","exploited":true,"published_at":"2021-11-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-6789-exim-buffer-overflow-vulnerability"},{"cve":"CVE-1999-0971","cvss":7.2,"slug":"cve-1999-0971-exim-buffer-overflow-in-forward-file-processing","title":"Exim buffer overflow in .forward file processing","severity":"high","exploited":false,"published_at":"1997-07-22T04:00:00+00:00","url":"https://junglewise.ai/threats/cve-1999-0971-exim-buffer-overflow-in-forward-file-processing"}],"vendor":{"hub":true,"name":"Exim","slug":"exim","homepage":"https://www.exim.org/","description":"Exim is an open-source project maintaining a widely-used message transfer agent for Unix-like operating systems.","url":"https://junglewise.ai/threats/vendors/exim"},"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":2},{"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":4},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"most_severe":[{"cve":"CVE-2010-4344","cvss":9.8,"slug":"cve-2010-4344-exim-heap-based-buffer-overflow-vulnerability","title":"Exim Heap-Based Buffer Overflow Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-25T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2010-4344-exim-heap-based-buffer-overflow-vulnerability"},{"cve":"CVE-2019-16928","cvss":9.8,"slug":"cve-2019-16928-exim-out-of-bounds-write-vulnerability","title":"Exim Out-of-bounds Write Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2019-16928-exim-out-of-bounds-write-vulnerability"},{"cve":"CVE-2019-10149","cvss":9.8,"slug":"cve-2019-10149-exim-mail-transfer-agent-mta-improper-input-validation","title":"Exim Mail Transfer Agent (MTA) Improper Input Validation","severity":"critical","exploited":true,"published_at":"2022-01-10T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2019-10149-exim-mail-transfer-agent-mta-improper-input-validation"},{"cve":"CVE-2018-6789","cvss":9.8,"slug":"cve-2018-6789-exim-buffer-overflow-vulnerability","title":"Exim Buffer Overflow Vulnerability","severity":"critical","exploited":true,"published_at":"2021-11-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2018-6789-exim-buffer-overflow-vulnerability"},{"cve":"CVE-2010-4345","cvss":7.8,"slug":"cve-2010-4345-exim-privilege-escalation-vulnerability","title":"Exim Privilege Escalation Vulnerability","severity":"critical","exploited":true,"published_at":"2022-03-25T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2010-4345-exim-privilege-escalation-vulnerability"},{"cve":"CVE-2026-45185","cvss":9.8,"epss":0.0008,"slug":"cve-2026-45185-exim-use-after-free-in-bdat-body-parsing-with-gnutls","title":"Exim use-after-free in BDAT body parsing with GnuTLS","severity":"critical","exploited":false,"published_at":"2026-05-12T20:16:46.137+00:00","url":"https://junglewise.ai/threats/cve-2026-45185-exim-use-after-free-in-bdat-body-parsing-with-gnutls"},{"cve":"CVE-2026-66140","cvss":8.4,"slug":"cve-2026-66140-exim-directory-traversal-in-queue-name-arguments","title":"Exim directory traversal in queue-name arguments","severity":"high","exploited":false,"published_at":"2026-07-24T05:16:49.747+00:00","url":"https://junglewise.ai/threats/cve-2026-66140-exim-directory-traversal-in-queue-name-arguments"},{"cve":"CVE-2026-94056","cvss":7.5,"epss":0.0036,"slug":"cve-2026-94056-exim-before-4-100-1-when-proxy-protocol-is-used-with-an-attacker","title":"Exim Proxy Protocol stack memory disclosure","severity":"high","exploited":false,"published_at":"2026-09-19T23:17:11.113+00:00","url":"https://junglewise.ai/threats/cve-2026-94056-exim-before-4-100-1-when-proxy-protocol-is-used-with-an-attacker"},{"cve":"CVE-2026-66141","cvss":7.4,"slug":"cve-2026-66141-exim-privilege-escalation-in-forward-pipe-transport-force-command","title":"Exim privilege escalation in .forward pipe transport force_command","severity":"high","exploited":false,"published_at":"2026-07-24T05:16:49.89+00:00","url":"https://junglewise.ai/threats/cve-2026-66141-exim-privilege-escalation-in-forward-pipe-transport-force-command"},{"cve":"CVE-1999-0971","cvss":7.2,"slug":"cve-1999-0971-exim-buffer-overflow-in-forward-file-processing","title":"Exim buffer overflow in .forward file processing","severity":"high","exploited":false,"published_at":"1997-07-22T04:00:00+00:00","url":"https://junglewise.ai/threats/cve-1999-0971-exim-buffer-overflow-in-forward-file-processing"}],"generated_at":"2026-09-26T12:07:00.15149+00:00","technologies":[{"name":"Exim","slug":"exim","vulnerabilities":14,"url":"https://junglewise.ai/threats/technologies/exim"}]}