How severe is CVE-2020-14871?

CVE-2020-14871 has a CVSS 3.1 base score of 10 (CRITICAL). EPSS estimates a 80.2% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2020-14871: Oracle Solaris and Zettabyte File System (ZFS)

CISA Known Exploited Vulnerabilities

Oracle Solaris and Zettabyte File System (ZFS) Unspecified Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2021-11-03

Remediation due

2022-05-03

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2020-14871

Description

Vulnerability in the Oracle Solaris product of Oracle Systems (component: Pluggable authentication module). Supported versions that are affected are 10 and 11. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Solaris. While the vulnerability is in Oracle Solaris, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle Solaris. Note: This CVE is not exploitable for Solaris 11.1 and later releases, and ZFSSA 8.7 and later releases, thus the CVSS Base Score is 0.0. CVSS 3.1 Base Score 10.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

Severity

CVSS 3.1 · CNA10 CRITICAL

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

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Exploitation Context

as of October 13, 2026

All KEV statistics→

CISA added CVE-2020-14871 to the KEV catalog 378 days after its CVE record was published.
It is one of 46 Oracle entries in the CISA KEV catalog, and one of 7 added in 2021.
Its current EPSS score (80.2%) is higher than that of 64% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
Oracle Corporation	Oracle Corporation Solaris Operating System	10 11

References

7 Links

Mailing lists

Other references

Record Details

Published

2020-10-21

Last updated

2025-10-21

Assigner (CNA)

oracle

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.