Orthanc before 1.12.0 allows authenticated users with access to the Orthanc API to overwrite arbitrary files on the file system, and in specific deployment scenarios allows the attacker to overwrite the configuration, which can be exploited to trigger Remote Code Execution (RCE).
Conclusion & alert: CVE-2023-33466 is rated High Risk (67.9/100): CVSS High severity, with high exploitation likelihood (EPSS 57.75%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-27 | 59.44% | 57.75% | -1.69% |
| 2 | 2026-05-22 | 24.73% | 59.44% | +34.71% |
| 3 | 2026-04-25 | — | 24.73% | — |
Full EPSS history (29 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2023-33466 not yet assigned priority: Debian including 1 source packages (orthanc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-33466 |
ubuntu
|
medium | CVE-2023-33466 medium priority: Ubuntu including 1 source packages (orthanc), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): needs-triage 7, ignored 6. | https://ubuntu.com/security/CVE-2023-33466 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| orthanc-server | orthanc | < 1.12.0 | cpe:2.3:a:orthanc-server:orthanc:*:*:*:*:*:*:*:* |