CVE-2019-10149A flaw was found in Exim versions 4.87 to 4.91 (inclusive).
Updated under an hour ago ()
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It affects exim and 2 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Jan 10, 2022; federal agencies had to remediate by Jul 10, 2022. Treat that date as your deadline.
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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.
- CVSS
- 9.0 CRITICAL (v3.0, CNA)CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-78
- Known exploited
- Added to CISA KEV Jan 10, 2022; federal remediation due Jul 10, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 99.96% (percentile 100)
- Assigned by
- redhat
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
exim exim exim:exim (from the name) | 4.92 | CNA record |
exim exim exim:exim | from 4.87 through 4.91 | NVD |
canonical ubuntu_linux canonical:ubuntu_linux | 18.04; 18.10 | NVD |
debian debian_linux debian:debian_linux | 9.0 | NVD |
References
- http://www.openwall.com/lists/oss-security/2019/06/05/2mailing-list, third-party-advisory
- https://usn.ubuntu.com/4010-1/vendor-advisory, third-party-advisory
- http://www.openwall.com/lists/oss-security/2019/06/05/3mailing-list, patch, third-party-advisory
- http://www.openwall.com/lists/oss-security/2019/06/05/4mailing-list, exploit
- https://www.debian.org/security/2019/dsa-4456vendor-advisory, third-party-advisory
- https://seclists.org/bugtraq/2019/Jun/5mailing-list, third-party-advisory
- https://security.gentoo.org/glsa/201906-01vendor-advisory, third-party-advisory
- http://www.openwall.com/lists/oss-security/2019/06/06/1mailing-list, exploit, third-party-advisory
- http://www.securityfocus.com/bid/108679vdb-entry, broken-link, third-party-advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00020.htmlvendor-advisory, mailing-list, third-party-advisory
- http://seclists.org/fulldisclosure/2019/Jun/16mailing-list, third-party-advisory
- http://www.openwall.com/lists/oss-security/2019/07/25/6mailing-list, third-party-advisory
- http://www.openwall.com/lists/oss-security/2019/07/25/7mailing-list, third-party-advisory
- http://www.openwall.com/lists/oss-security/2019/07/26/4mailing-list, third-party-advisory
- http://www.openwall.com/lists/oss-security/2021/05/04/7mailing-list, third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10149issue-tracking, third-party-advisory
- https://www.exim.org/static/doc/security/CVE-2019-10149.txtvendor-advisory
- http://packetstormsecurity.com/files/153218/Exim-4.9.1-Remote-Command-Execution.htmlexploit, third-party-advisory, vdb-entry
- http://packetstormsecurity.com/files/153312/Exim-4.91-Local-Privilege-Escalation.htmlexploit, third-party-advisory, vdb-entry
- http://packetstormsecurity.com/files/154198/Exim-4.91-Local-Privilege-Escalation.htmlexploit, third-party-advisory, vdb-entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-10149us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.