What is CVE-2023-42117?

CVE-2023-42117 is a high-severity vulnerability in Exim, classified under CWE-138. CVSS score: 8.1/10. Published 2024-05-03.

How severe is CVE-2023-42117?

High severity. CVSS v3 base score is 8.1 out of 10.

Is CVE-2023-42117 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Exim

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 vu…

EPSS: 0.073 (91.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Exim — versions 4.96-RC1-11-315206fbf

Weakness classification (CWE)

CWE-138

Public proof-of-concept exploits

References

ZDI-23-1471 (x_research-advisory)

Frequently asked questions

What is CVE-2023-42117?: CVE-2023-42117 is a high-severity vulnerability in Exim, classified under CWE-138. CVSS score: 8.1/10. Published 2024-05-03.
How severe is CVE-2023-42117?: High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2023-42117 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.