Medium severity · published Jan 20, 2026
CVE-2026-21942
Vulnerability in the Oracle Solaris product of Oracle Systems (component: Filesystems)
5.0
CVSS
0.1%
EPSS
No
On KEV
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
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 3% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OS
Oracle Solaris · Oracle Corporation
10; 11 · source: vendor
SO
Solaris · Oracle
10; 11 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-21942
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-21942
Vendor Advisory
https://www.oracle.com/security-alerts/cpujan2026.html
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