Is CVE-2020-27678 actively exploited?

CVE-2020-27678 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2020-27678?

CVE-2020-27678 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2020-27678?

Patch guidance is available from illumos security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-27678.

Fix CVE-2020-27678 - CRITICAL illumos illumos

Q: Which products are affected by CVE-2020-27678?

5 products: illumos illumos, joyent smartos, omniosce omnios, omniosce omnios, omniosce omnios.

Description

An issue was discovered in illumos before 2020-10-22, as used in OmniOS before r151030by, r151032ay, and r151034y and SmartOS before 20201022. There is a buffer overflow in parse_user_name in lib/libpam/pam_framework.c.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-120

Metadata

Primary Vendor: ILLUMOS
Published: 10/26/2020
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

illumos : illumosjoyent : smartosomniosce : omniosomniosce : omniosomniosce : omnios

Remediation Guidance

Executive Summary

Cite this page

CVE-2020-27678. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2020-27678

View on NIST NVD

CVE-2020-27678 vulnerability