Is CVE-2018-7738 actively exploited?

CVE-2018-7738 has no public evidence of in-the-wild exploitation as of 2024-12-13.

What is the CVSS score for CVE-2018-7738?

CVE-2018-7738 has a CVSS score of 7.8 (HIGH severity). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2018-7738?

Patch guidance is available from kernel security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-7738.

Fix CVE-2018-7738 - HIGH kernel util-linux

Description

In util-linux before 2.32-rc1, bash-completion/umount allows local users to gain privileges by embedding shell commands in a mountpoint name, which is mishandled during a umount command (within Bash) by a different user, as demonstrated by logging in as root and entering umount followed by a tab character for autocompletion.

CVSS Metrics

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: local
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: NVD-CWE-noinfo

Metadata

Primary Vendor: KERNEL
Published: 3/7/2018
Last Modified: 12/13/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

kernel : util-linux

Remediation Guidance

Executive Summary

Cite this page

CVE-2018-7738. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2018-7738

View on NIST NVD

CVE-2018-7738 vulnerability