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CVE-2026-21942

Published: Jan 20, 2026Updated: Jan 29, 2026 Sources: CVE List NVD BDUCWE-400
NVD MITRE
5.0CVSSMEDIUM
EPSS Score
0.1%
Top 98.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Vulnerability in the Oracle Solaris product of Oracle Systems (component: Filesystems). Supported versions that are affected are 10 and 11. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Solaris executes to compromise Oracle Solaris. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Solaris. CVSS 3.1 Base Score 5.0 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H).

CVSS Vector Breakdown

AV:LAC:LPR:LUI:RS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-400

Affected Products

solarisoracle
OS
Operating Systems / unix-bsd
Oracle SolarisOracle Corporation
On-prem
Databases / relational
SolarisOracle Corp.
On-premDatabase
Databases / relational
oraclecommercialUSDatabasesaka oracle corp.
oracle corporationcommercialUSDatabasesaka oracle
oracle corp.commercialUSDatabasesaka oracle

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://www.oracle.com/security-alerts/cpujan2026.html
oracle.com
https://www.cybersecurity-help.cz/vdb/SB20260120201
cybersecurity-help.cz

Timeline

Published
Jan 20, 2026
Last Updated
Jan 29, 2026

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