UpHeron
All vulnerabilities

Servers and applications

CVE-2023-42117

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…

Severity
Critical 9.8
Published
3 May 2024
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
4.96.2
Sources
NVD

Affected software

SoftwareAffected versions
EximServers and applications · cpe:a:exim:exim
  • Every version before 4.96.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-42117
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-42117