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CVE-2022-20001

20
FAUCET Score

CVE-2022-20001 affects fish shell versions 3.1.0 through 3.3.1, allowing arbitrary code execution. This occurs when a user changes directory into a malicious Git repository, triggering fish's default Git prompt functionality to execute attacker-controlled commands. With a CVSS score of 7.8 (High), this vulnerability has a low attack complexity but requires user interaction, potentially leading to full compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.1.0, <= 3.3.1CPE matchmatch criteria
cpe:2.3:a:fishshell:fish:*:*:*:*:*:*:*:*
35CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
36CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.42%
Probability of exploitation in next 30 days
EPSS Percentile
70.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0142 is in the 68th percentile among its peer group of 11,616 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 19640-16823
microsoftpatch availablevia msrc
Product: cbl2 fish on CBL Mariner 2.0

Vendor Advisories (1)

microsoft2022-Mar/CVE-2022-20001Important

Injection in fish

Mar 8, 2022

References

github.com / fish-shell/fish-shell/pull/8589
PatchThird Party Advisory
github.com / fish-shell/fish-shell/releases/tag/3.4.0
Release NotesThird Party Advisory
github.com / fish-shell/fish-shell/security/advisories/GHSA-pj5f-6vxj-f5mq
Third Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/BPZ7JV22DSZB5LNUCUEJ2HO3PKM2TVVK
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/TRNMYS2LKB6TKOOBQQRSRQICDMWLZ4QL
security.gentoo.org / glsa/202309-10
debian.org / security/2022/dsa-5234
Third Party Advisory