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.
02 Description
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.
03 Exploitation and scoring
- Exploitation
- Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2022-01-10. Federal remediation due 2022-07-10.
- SSVC decision
- ExploitationactiveCISA reports credible evidence of active exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 99.96% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 99.9% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Critical. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2019-06-05 00:00Z7 YR AGO
- Last updated
- 2025-10-21 23:45Z1 YR AGO
- Reserved
- 2019-03-27
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Critical (CVSS 9.0)
- CNA CVSS vector
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base
- Data version
- 5.1
- Document digest
- af09f1a6bf6bcc181fbed6967a42cdbc6102fc2d2f5292cee01af2f5496bc3be
05 Affected products
06 References
- www.openwall.com[oss-security] 20190605 Re: CVE-2019-10149: Exim 4.87 to 4.91: possible remote exploithttp://www.openwall.com/lists/oss-security/2019/06/05/2
- usn.ubuntu.comUSN-4010-1https://usn.ubuntu.com/4010-1/
- www.openwall.com[oss-security] 20190605 Re: CVE-2019-10149: Exim 4.87 to 4.91: possible remote exploithttp://www.openwall.com/lists/oss-security/2019/06/05/3
- www.openwall.com[oss-security] 20190605 Re: CVE-2019-10149: Exim 4.87 to 4.91: possible remote exploithttp://www.openwall.com/lists/oss-security/2019/06/05/4
- www.debian.orgDSA-4456https://www.debian.org/security/2019/dsa-4456
- seclists.org20190605 [SECURITY] [DSA 4456-1] exim4 security updatehttps://seclists.org/bugtraq/2019/Jun/5
- security.gentoo.orgGLSA-201906-01https://security.gentoo.org/glsa/201906-01
- www.openwall.com[oss-security] 20190606 Re: CVE-2019-10149: Exim 4.87 to 4.91: possible remote exploithttp://www.openwall.com/lists/oss-security/2019/06/06/1
- www.securityfocus.com108679http://www.securityfocus.com/bid/108679
- lists.opensuse.orgopenSUSE-SU-2019:1524http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00020.html
- seclists.org20190611 The Return of the WIZard: RCE in Exim (CVE-2019-10149)http://seclists.org/fulldisclosure/2019/Jun/16
- www.openwall.com[oss-security] 20190725 Re: Statistics for distros lists updated for 2019Q2http://www.openwall.com/lists/oss-security/2019/07/25/6
- www.openwall.com[oss-security] 20190725 Re: Statistics for distros lists updated for 2019Q2http://www.openwall.com/lists/oss-security/2019/07/25/7
- www.openwall.com[oss-security] 20190726 Re: Statistics for distros lists updated for 2019Q2http://www.openwall.com/lists/oss-security/2019/07/26/4
- www.openwall.com[oss-security] 20210504 21Nails: Multiple vulnerabilities in Eximhttp://www.openwall.com/lists/oss-security/2021/05/04/7
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10149
- www.exim.orghttps://www.exim.org/static/doc/security/CVE-2019-10149.txt
- packetstormsecurity.comhttp://packetstormsecurity.com/files/153218/Exim-4.9.1-Remote-Command-Execution.html
- packetstormsecurity.comhttp://packetstormsecurity.com/files/153312/Exim-4.91-Local-Privilege-Escalation.html
- packetstormsecurity.comhttp://packetstormsecurity.com/files/154198/Exim-4.91-Local-Privilege-Escalation.html
- www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-10149
07 Fixed in
Arch Linux
- exim Fixed in 4.92-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- exim4 Fixed in 4.92~RC3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- exim4 Fixed in 4.92~RC3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- exim4 Fixed in 4.92~RC3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- exim4 Fixed in 4.90.1-1ubuntu1.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.