How severe is CVE-2021-3725?

CVE-2021-3725 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-3725 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3725?

CVE-2021-3725 affects Planetargon Oh My Zsh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3725?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-3725 published?

CVE-2021-3725 was published on 2021-11-30 and last updated on 2026-06-17.

CVE-2021-3725

CVE-2021-3725 is a high-severity vulnerability in Planetargon Oh My Zsh with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 6.8
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Planetargon Oh My Zsh
Published: 2021-11-30
Last modified: 2026-06-17

Description

Vulnerability in dirhistory plugin Description: the widgets that go back and forward in the directory history, triggered by pressing Alt-Left and Alt-Right, use functions that unsafely execute eval on directory names. If you cd into a directory with a carefully-crafted name, then press Alt-Left, the system is subject to command injection. Impacted areas: - Functions pop_past and pop_future in dirhistory plugin.

Frequently asked questions

What is CVE-2021-3725?: Vulnerability in dirhistory plugin Description: the widgets that go back and forward in the directory history, triggered by pressing Alt-Left and Alt-Right, use functions that unsafely execute eval on directory names. If you cd into a directory with a carefully-crafted name, then press Alt-Left, the system is subject to command injection. Impacted areas: - Functions pop_past and pop_future in dirhistory plugin.
How severe is CVE-2021-3725?: CVE-2021-3725 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-3725 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3725?: CVE-2021-3725 affects Planetargon Oh My Zsh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3725?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-3725 published?: CVE-2021-3725 was published on 2021-11-30 and last updated on 2026-06-17.

References

https://github.com/ohmyzsh/ohmyzsh/commit/06fc5fb

Affected products (1)

cpe:2.3:a:planetargon:oh_my_zsh:*:*:*:*:*:*:*:*

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