CVE-2023-51803
CriticalPublished
LinuxServer.io Heimdall before 2.5.7 does not prevent use of icons that have non-image data such as the "" substring.
- Published
- Mar 31, 2024
- Updated
- Aug 20, 2024
- Assigning CNA
- mitre
- Evidence observed
- Aug 5, 2026
Primary CVSS
9.8/ 10Critical
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H0.7%
Low · next 30 days
- Percentile
- 51.4%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
LinuxServer.io Heimdall before 2.5.7 does not prevent use of icons that have non-image data such as the "<?php ?>" substring.
Sources
1- HeimShellExploit
CVE-2023-5180 LinuxServer.io Heimdall before 2.5.7 does not prevent use of icons that have non-image data such as the "<?php ?>" substring.
Responsible use
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