CVE-2026-21991
Received
Received - Intake
Arbitrary File Creation in DTrace dtprobed via USDT Injection
Publication date: 2026-03-16
Last updated on: 2026-04-07
Assigner: Oracle
Description
Description
A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| oracle | linux | 8 |
| oracle | linux | 10 |
| oracle | linux | 9 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-22 | The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in a DTrace component called dtprobed. It allows an attacker to create arbitrary files by using specially crafted USDT (User-level Statically Defined Tracing) provider names.
How can this vulnerability impact me? :
The vulnerability can impact you by allowing an attacker with limited privileges to create arbitrary files on the system. While it does not affect confidentiality or integrity, it can cause availability issues.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know
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