How severe is CVE-2021-4306?

CVE-2021-4306 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2021-4306 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4306?

CVE-2021-4306 affects Terminal-kit Project Terminal-kit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4306?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-4306 published?

CVE-2021-4306 was published on 2023-01-07 and last updated on 2026-06-17.

CVE-2021-4306

CVE-2021-4306 is a low-severity vulnerability in Terminal-kit Project Terminal-kit with a CVSS 3.x base score of 3.5. 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-1333.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 2.3
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1333
Affected product: Terminal-kit Project Terminal-kit
Published: 2023-01-07
Last modified: 2026-06-17

Description

A vulnerability classified as problematic has been found in cronvel terminal-kit up to 2.1.7. Affected is an unknown function. The manipulation leads to inefficient regular expression complexity. Upgrading to version 2.1.8 is able to address this issue. The name of the patch is a2e446cc3927b559d0281683feb9b821e83b758c. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-217620.

Frequently asked questions

What is CVE-2021-4306?: A vulnerability classified as problematic has been found in cronvel terminal-kit up to 2.1.7. Affected is an unknown function. The manipulation leads to inefficient regular expression complexity. Upgrading to version 2.1.8 is able to address this issue. The name of the patch is a2e446cc3927b559d0281683feb9b821e83b758c. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-217620.
How severe is CVE-2021-4306?: CVE-2021-4306 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2021-4306 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4306?: CVE-2021-4306 affects Terminal-kit Project Terminal-kit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4306?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-4306 published?: CVE-2021-4306 was published on 2023-01-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:terminal-kit_project:terminal-kit:*:*:*:*:*:node.js:*:*

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