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Vulnerability details: VCID-ehx1-5ude-hycd
Vulnerability ID VCID-ehx1-5ude-hycd
Aliases CVE-2021-45444
Summary zsh: Prompt expansion vulnerability
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')
System Score Found at
cvssv3 7.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45444.json
epss 0.00147 https://api.first.org/data/v1/epss?cve=CVE-2021-45444
cvssv3.1 7 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45444.json
https://api.first.org/data/v1/epss?cve=CVE-2021-45444
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45444
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2054089 https://bugzilla.redhat.com/show_bug.cgi?id=2054089
GLSA-202407-01 https://security.gentoo.org/glsa/202407-01
RHSA-2022:2120 https://access.redhat.com/errata/RHSA-2022:2120
USN-5325-1 https://usn.ubuntu.com/5325-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45444.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.34755
EPSS Score 0.00147
Published At May 29, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-29T09:14:08.916574+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45444.json 38.6.0