CVE-2026-21991
Publication date 16 March 2026
Last updated 8 April 2026
Ubuntu priority
Description
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| dtrace | 25.10 questing | Not in release |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
5.5 · Medium
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |