CVE-2023-33466

Orthanc before 1.12.0 allows authenticated users with access to the Orthanc API to overwrite...

8.8 HighFix available

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).

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

4.15%Up 4.1 points since Jun 30, 2023

What each source reports

NVD Score used 8.8

Record: CVE-2023-33466
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-94
Updated: 2026-11-02

CVE List No score

Record: CVE-2023-33466
Weakness: CWE-94
Updated: 2026-11-02

EUVDEUVD-2023-37629 No score

Record: EUVD-2023-37629
Updated: 2026-11-03

GitHub AdvisoriesGHSA-f5vv-hcgf-xvxq 8.8

Orthanc before 1.12.0 allows authenticated users with access to the Orthanc API to overwrite...

Record: GHSA-f5vv-hcgf-xvxq
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-94
Updated: 2026-11-02

OSV 8.8

Record: CVE-2023-33466
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2023-33466 8.8

Record: DEBIAN-CVE-2023-33466
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2023-33466 8.8

Record: UBUNTU-CVE-2023-33466
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

orthanc-server orthanc

Affected packages

Affected packages
Package	Affected	Fixed
`orthanc` Debian:12	before 1.10.1+dfsg-2+deb12u1, plus listed versions 1.10.1+dfsg-2	1.10.1+dfsg-2+deb12u1
`orthanc` Debian:13	before 1.12.1+dfsg-1	1.12.1+dfsg-1
`orthanc` Debian:14	before 1.12.1+dfsg-1	1.12.1+dfsg-1
`orthanc` Debian:10	before 1.5.6+dfsg-1+deb10u1, plus listed versions 1.5.6+dfsg-1	1.5.6+dfsg-1+deb10u1
`orthanc` Debian:11	before 1.9.2+really1.9.1+dfsg-1+deb11u1, plus listed versions 1.9.2+really1.9.1+dfsg-1	1.9.2+really1.9.1+dfsg-1+deb11u1
`orthanc` Ubuntu:16.04:LTS	All versions, plus listed versions 0.9.4+dfsg-10.9.4+dfsg-20.9.5+dfsg-11.0.0+dfsg-11.0.0+dfsg-1build1	None known
`orthanc` Ubuntu:18.04:LTS	All versions, plus listed versions 1.3.0+dfsg-1build11.3.0+dfsg-1build21.3.1+dfsg-11.3.1+dfsg-1build11.3.1+dfsg-1build2	None known
`orthanc` Ubuntu:20.04:LTS	All versions, plus listed versions 1.5.7+dfsg-21.5.8+dfsg-21.5.8+dfsg-2ubuntu21.5.8+dfsg-2ubuntu31.5.8+dfsg-2ubuntu41.5.8+dfsg-2ubuntu51.5.8+dfsg-2ubuntu6	None known
`orthanc` Ubuntu:22.04:LTS	All versions, plus listed versions 1.9.2+really1.9.1+dfsg-11.9.7+dfsg-3ubuntu11.9.7+dfsg-3ubuntu21.9.7+dfsg-41.9.7+dfsg-51.9.7+dfsg-61.10.0+dfsg-1	None known
`orthanc` Ubuntu:24.04:LTS	All versions, plus listed versions 1.12.1+dfsg-31.12.1+dfsg-41.12.1+dfsg-4build11.12.2+dfsg-11.12.2+dfsg-1build31.12.2+dfsg-1build4	None known
`orthanc` Ubuntu:25.10	All versions, plus listed versions 1.12.6+dfsg-11.12.7+dfsg-41.12.7+dfsg-4build2	None known
`orthanc` Ubuntu:26.10	All versions, plus listed versions 1.12.10+dfsg-21.12.11+dfsg-81.12.11+dfsg-8build1	None known
`orthanc` Ubuntu:26.04:LTS	All versions, plus listed versions 1.12.7+dfsg-4build21.12.9+dfsg-21.12.10+dfsg-11.12.10+dfsg-1build11.12.10+dfsg-2	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-33466 is a high vulnerability (CVSS 8.8) in Orthanc-server Orthanc, published June 29, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.15%, the 90th percentile. Fixed in orthanc 1.10.1+dfsg-2+deb12u1.