How severe is CVE-2023-4316?

CVE-2023-4316 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-4316 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4316?

CVE-2023-4316 affects Zod. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4316?

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-2023-4316 published?

CVE-2023-4316 was published on 2023-09-28 and last updated on 2026-06-17.

CVE-2023-4316

CVE-2023-4316 is a high-severity vulnerability in Zod 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-1333.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1333
Affected product: Zod
Published: 2023-09-28
Last modified: 2026-06-17

Description

Zod in versions 3.21.0 up to and including 3.22.3 allows an attacker to perform a denial of service while validating emails.

Frequently asked questions

What is CVE-2023-4316?: Zod in versions 3.21.0 up to and including 3.22.3 allows an attacker to perform a denial of service while validating emails.
How severe is CVE-2023-4316?: CVE-2023-4316 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-4316 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4316?: CVE-2023-4316 affects Zod. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4316?: 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-2023-4316 published?: CVE-2023-4316 was published on 2023-09-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:zod:zod:3.22.2:*:*:*:*:node.js:*:*

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