CVE-2026-21991
5.5
MEDIUM
CVSS 3.1
EPSS 0.18%
Description
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
How to fix CVE-2026-21991
To remediate CVE-2026-21991, upgrade the affected package to a fixed version below.
- Debian/dtrace—upgrade to 2.0.6-1 or later
Is CVE-2026-21991 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.0.6-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |