Is CVE-2018-7549 actively exploited?

CVE-2018-7549 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2018-7549?

CVE-2018-7549 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2018-7549?

Patch guidance is available from zsh security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-7549.

Fix CVE-2018-7549 - HIGH zsh zsh

Q: Which products are affected by CVE-2018-7549?

7 products: zsh zsh, redhat enterprise linux desktop, redhat enterprise linux server, redhat enterprise linux workstation, canonical ubuntu linux, and 2 more.

Description

In params.c in zsh through 5.4.2, there is a crash during a copy of an empty hash table, as demonstrated by typeset -p.

CVSS Metrics

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-20 · Improper Input Validation

Metadata

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.

Affected Products

zsh : zshredhat : enterprise_linux_desktopredhat : enterprise_linux_serverredhat : enterprise_linux_workstationcanonical : ubuntu_linuxcanonical : ubuntu_linuxcanonical : ubuntu_linux

Remediation Guidance

Executive Summary

Cite this page

CVE-2018-7549. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2018-7549

View on NIST NVD

CVE-2018-7549 vulnerability