Unrated severityNVD Advisory· Published May 3, 2024· Updated Nov 3, 2025
Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability
CVE-2023-42117
Description
Exim Improper Neutralization of Special Elements Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the smtp service, which listens on TCP port 25 by default. The issue results from the lack of proper validation of user-supplied data, which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17554.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
33- osv-coords31 versionspkg:apk/chainguard/eximpkg:apk/chainguard/exim-cdbpkg:apk/chainguard/exim-dbmdbpkg:apk/chainguard/exim-dnsdbpkg:apk/chainguard/exim-docpkg:apk/chainguard/exim-mysqlpkg:apk/chainguard/exim-pgsqlpkg:apk/chainguard/exim-scriptspkg:apk/chainguard/exim-sqlitepkg:apk/chainguard/exim-utilspkg:apk/chainguard/libspf2pkg:apk/chainguard/libspf2-devpkg:apk/chainguard/libspf2-toolspkg:apk/wolfi/eximpkg:apk/wolfi/exim-cdbpkg:apk/wolfi/exim-dbmdbpkg:apk/wolfi/exim-dnsdbpkg:apk/wolfi/exim-docpkg:apk/wolfi/exim-mysqlpkg:apk/wolfi/exim-pgsqlpkg:apk/wolfi/exim-scriptspkg:apk/wolfi/exim-sqlitepkg:apk/wolfi/exim-utilspkg:apk/wolfi/libspf2pkg:apk/wolfi/libspf2-devpkg:apk/wolfi/libspf2-toolspkg:rpm/opensuse/exim&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/exim&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/exim&distro=openSUSE%20Tumbleweedpkg:rpm/suse/exim&distro=SUSE%20Package%20Hub%2015%20SP4pkg:rpm/suse/exim&distro=SUSE%20Package%20Hub%2015%20SP5
< 4.96.1-r0+ 30 more
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 1.2.11-r1
- (no CPE)range: < 1.2.11-r1
- (no CPE)range: < 1.2.11-r1
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 4.96.1-r0
- (no CPE)range: < 1.2.11-r1
- (no CPE)range: < 1.2.11-r1
- (no CPE)range: < 1.2.11-r1
- (no CPE)range: < 4.94.2-bp154.2.9.1
- (no CPE)range: < 4.94.2-bp155.5.6.1
- (no CPE)range: < 4.96.2-1.1
- (no CPE)range: < 4.94.2-bp154.2.9.1
- (no CPE)range: < 4.94.2-bp155.5.6.1
Patches
Vulnerability mechanics
References
1- www.zerodayinitiative.com/advisories/ZDI-23-1471/mitrex_research-advisory
News mentions
0No linked articles in our index yet.