CVE-2026-58302
LinuxCNC rtapi_app Privilege Escalation
Description
rtapi_app in linuxcnc-uspace in LinuxCNC before 2.9.9 allows privilege escalation. It is installed SUID root and loads shared library modules via dlopen() by using a user-supplied module name. Insufficient validation of the module name allows path traversal, enabling an unprivileged local user to load an arbitrary shared library. Because the process retains elevated privileges during module loading, this results in local privilege escalation to root.
INFO
Published Date :
June 30, 2026, 1:09 a.m.
Last Modified :
June 30, 2026, 1:09 a.m.
Remotely Exploit :
No
Source :
mitre
Affected Products
The following products are affected by CVE-2026-58302
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 8254265b-2729-46b6-b9e3-3dfca2d5bfca |
Solution
- Update LinuxCNC to version 2.9.9 or later.
- Ensure rtapi_app is not SUID root.
- Validate module names loaded via dlopen().
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The following list is the news that have been mention
CVE-2026-58302 vulnerability anywhere in the article.