CVE-2023-26150
Publication date 3 October 2023
Last updated 4 August 2025
Ubuntu priority
Cvss 3 Severity Score
Description
Versions of the package asyncua before 0.9.96 are vulnerable to Improper Authentication such that it is possible to access Address Space without encryption and authentication. **Note:** This issue is a result of missing checks for services that require an active session.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| python-opcua | 25.10 questing | Not in release |
| 25.04 plucky | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial | Ignored end of standard support | |
| 14.04 LTS trusty | Ignored end of standard support |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
References
Other references
- https://github.com/FreeOpcUa/opcua-asyncio/commit/b4106dfd5037423c9d1810b48a97296b59cde513
- https://github.com/FreeOpcUa/opcua-asyncio/commit/2be7ce80df05de8d6c6ae1ebce6fa2bb7147844a
- https://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96
- https://security.snyk.io/vuln/SNYK-PYTHON-ASYNCUA-5673435
- https://gist.github.com/artfire52/84f7279a4119d6f90381ac49d7121121
- https://github.com/FreeOpcUa/opcua-asyncio/issues/1014
- https://github.com/FreeOpcUa/opcua-asyncio/pull/1015
- https://www.cve.org/CVERecord?id=CVE-2023-26150