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CVE-2021-3934

24
FAUCET Score

CVE-2021-3934 describes an Improper Neutralization of Special Elements vulnerability (CWE-78) affecting ohmyzsh, specifically the planetargon oh_my_zsh product. This vulnerability carries a CVSS v3.1 score of 7.5 HIGH, indicating a high potential impact (confidentiality, integrity, and availability) through a network-based attack requiring user interaction and high attack complexity. There is currently no evidence of active exploitation, publicly available exploit code in Metasploit or ExploitDB, nor significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2021-11-11CPE matchmatch criteria
cpe:2.3:a:planetargon:oh_my_zsh:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
0.60%
Probability of exploitation in next 30 days
EPSS Percentile
45.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0060 is in the 38th percentile among its peer group of 1,572 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.4 Bluesky, 0.2 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.6 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / ohmyzsh/ohmyzsh/commit/6cb41b70a6d04301fd50cd5862ecd705ba226c0e
PatchThird Party Advisory
huntr.dev / bounties/ad2b5c3f-a3ce-4407-94dc-354c723310ce
Permissions Required