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No exploitation reportedFix available

CVE-2018-3745

No exploitation reported by the sources we read.

  • Published2018-05-29
  • Fixed in2.1.0
  • WeaknessCWE-125

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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

Timeline

dates in UTC
  1. 2018-05-2920:29CVE publishedNVD

Versions per branch

OSV · NVD
atob
BranchAffectedFixed in
2.1< 2.1.02.1.0
Atob project atob
BranchAffectedFixed in
2.0≤ 2.0.3no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2018-3745 Red Hat Product Security

    atob: uninitialized memory allocation in input

Full record on NVD

Fix

  1. Update atob to 2.1.0

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.19.1read 2026-10-23
  • NVDCVSS 2.06.4read 2026-10-23
  • CNAweakness (CWE)CWE-125known since 2026-10-23
  • NVDweakness (CWE)CWE-125read 2026-10-23
  • FIRST EPSSEPSS score2.1 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryCRITICAL2020-06-16

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Published
2018-05-29
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-8w4h-3cm3-2pm2

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.

Is CVE-2018-3745 actively exploited?

Active exploitation of CVE-2018-3745 has not been confirmed. Its EPSS score was 2.1% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-3745?

CVE-2018-3745 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

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