A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.
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Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-01-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.
A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.
June 5, 2019
November 6, 2025
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | eximon4 (4.91-6ubuntu1.1) @ cosmic | 2026-06-04 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
Working exploit code is in the public domain (8 GitHub PoCs) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
Exploit for CVE-2019-10149
Open source ↗Data Collection Related to Exim CVE-2019-10149
Open source ↗CVE-2019-10149 : A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.
Open source ↗Instructions for installing a vulnerable version of Exim and its expluatation
Open source ↗CVE-2019-10149
Open source ↗Exim 4.87 / 4.91 - Local Privilege Escalation (Metasploit)
Open source ↗Exim Honey Pot for CVE-2019-10149 exploit attempts.
Open source ↗CVE-2019-10149 privilege escalation
Open source ↗Exim 4.87 - 4.91 - Local Privilege Escalation
Open source ↗PoC for CVE-2019-10149, this vulnerability could be xploited betwen 4-87 to 4.91 version of Exim server.
Open source ↗See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-10149
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.
ubuntu
CWE-20 · CWE-78