CVE-2026-21991
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
- Record
CVE-2026-21991- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-22
- Updated
- 2026-11-02
EUVDEUVD-2026-12522
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
- Record
EUVD-2026-12522- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-m3x9-92c9-624c
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
- Record
GHSA-m3x9-92c9-624c- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-22
- Updated
- 2026-11-02
NVD
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
- Record
CVE-2026-21991- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-22
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-21991
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
- Record
DEBIAN-CVE-2026-21991- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
dtraceDebian:14 |
before 2.0.6-1, plus listed versions 2.0.5-1 |
2.0.6-1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-21991 is a medium vulnerability (CVSS 5.5) in Oracle Linux, published March 16, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 8th percentile. Fixed in dtrace 2.0.6-1.