How severe is CVE-2023-39619?

CVE-2023-39619 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-2023-39619 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39619?

CVE-2023-39619 affects Teomantuncer Node Email Check. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39619?

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-2023-39619 published?

CVE-2023-39619 was published on 2023-10-25 and last updated on 2026-06-17.

CVE-2023-39619

CVE-2023-39619 is a high-severity vulnerability in Teomantuncer Node Email Check 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% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1333
Affected product: Teomantuncer Node Email Check
Published: 2023-10-25
Last modified: 2026-06-17

Description

ReDos in NPMJS Node Email Check v.1.0.4 allows an attacker to cause a denial of service via a crafted string to the scpSyntax component.

Frequently asked questions

What is CVE-2023-39619?: ReDos in NPMJS Node Email Check v.1.0.4 allows an attacker to cause a denial of service via a crafted string to the scpSyntax component.
How severe is CVE-2023-39619?: CVE-2023-39619 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-2023-39619 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39619?: CVE-2023-39619 affects Teomantuncer Node Email Check. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39619?: 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-2023-39619 published?: CVE-2023-39619 was published on 2023-10-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:teomantuncer:node_email_check:1.0.4:*:*:*:*:node.js:*:*

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