Is CVE-2018-7548 actively exploited?

CVE-2018-7548 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2018-7548?

CVE-2018-7548 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Patch guidance is available from zsh security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-7548.

2 products: zsh zsh, canonical ubuntu linux.

In subst.c in zsh through 5.4.2, there is a NULL pointer dereference when using ${(PA)...} on an empty array result.

Primary Vendor: ZSH
Published: 2/27/2018
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.