CVE-2026-21991

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Summary

CVECVE-2026-21991
StatePUBLISHED
Assigneroracle
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-16 22:16:18 UTC
Updated2026-04-07 01:02:06 UTC
DescriptionA DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000130000 probability, percentile 0.019210000 (date 2026-04-07)

Problem Types: CWE-22 | A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names. | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1[email protected]Secondary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Oracle Linux 10 0 All All
Operating System Oracle Linux 8 - All All
Operating System Oracle Linux 9 0 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Oracle Corporation Oracle Linux affected 8 Not specified
CNA Oracle Corporation Oracle Linux affected 9 Not specified
CNA Oracle Corporation Oracle Linux affected 10 Not specified

References

ReferenceSourceLinkTags
linux.oracle.com/cve/CVE-2026-21991.html [email protected] linux.oracle.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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