Vulnerability Report

CVE-2026-21991

Title: DTrace dtprobed Arbitrary File Creation

Arbitrary File Access

Proof Of Concept

No public PoC currently indexed for CVE-2026-21991.

CWE Category NVD-CWE-noinfo
Published Date Mar 16, 2026
Modified Date Apr 07, 2026
Exploit Status Not Found
Score 5.5 CVSS v3.1
Exploit Probability (EPSS)
0.18%

Vulnerability Summary

CVE-2026-21991: A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.

Impacted Vendors

C
cyrix 1
C
conectiva 1
S
sun 1
O
oracle 1

Reference Links

https://linux.oracle.com/cve/CVE-2026-21991.html
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.5
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.5
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-21991 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.