How severe is CVE-2018-3745?

CVE-2018-3745 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2018-3745 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3745?

CVE-2018-3745 affects Atob Project Atob. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-3745?

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

When was CVE-2018-3745 published?

CVE-2018-3745 was published on 2018-05-29 and last updated on 2026-06-17.

CVE-2018-3745

CVE-2018-3745 is a critical-severity vulnerability in Atob Project Atob with a CVSS 3.x base score of 9.1. 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-125.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Atob Project Atob
Published: 2018-05-29
Last modified: 2026-06-17

Description

atob 2.0.3 and earlier allocates uninitialized Buffers when number is passed in input on Node.js 4.x and below.

Frequently asked questions

What is CVE-2018-3745?: atob 2.0.3 and earlier allocates uninitialized Buffers when number is passed in input on Node.js 4.x and below.
How severe is CVE-2018-3745?: CVE-2018-3745 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2018-3745 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3745?: CVE-2018-3745 affects Atob Project Atob. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-3745?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-3745 published?: CVE-2018-3745 was published on 2018-05-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:atob_project:atob:*:*:*:*:*:node.js:*:*

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