CVE-2018-1071

5.5 MEDIUM 0.4% exploit odds No fix listed

What it is

zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function. A local attacker could exploit this to cause a denial of service.

At a glance

Exploitability: Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2018-03-09 15:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 01:50 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.4% in the next 30 days (EPSS).
Severity: 5.5 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2018-03-09 15:29 UTC
Last modified: 2026-06-17 01:50 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-121
Record status: Modified

Affected

Zsh ≤ 5.4.2
Debian Linux 7.0
Canonical Ubuntu Linux 14.04
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 17.10
Redhat Enterprise Linux Desktop 7.0
Redhat Enterprise Linux Server 7.0
Redhat Enterprise Linux Workstation 7.0

Attack profile CVSS 3.1 · 5.5

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2018-1071.md and follow it. Check whether this project is affected by CVE-2018-1071. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

· More options · Status badge

Download Square Reddit

References

NVD record · CVE.org record