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HIGH severity

CVE-2020-35213 — atomix

HIGH

CVE-2020-35213 is a high-severity (CVSS 8.1) CWE-74 vulnerability in io.atomix:atomix. 1 public exploit reference exists, so weaponization risk is real. No vendor fix is recorded yet; mitigation options are listed below.

An issue in Atomix v3.1.5 allows attackers to cause a denial of service (DoS) via false link event messages sent to a master ONOS node.

Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
1 known
Exploitation data as of Oct 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.2%probability of exploitation in next 30 days
Lower Risk+0.84%
Lower risk than most CVEs67th percentile — riskier than 67% of all scored CVEsHighest risk
0.00%0.57%1.14%1.70%0.4%1.2%Jun 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2020-35213 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,386 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected
☕io.atomix:atomix

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

An issue in Atomix v3.1.5 allows attackers to cause a denial of service (DoS) via false link event messages sent to a master ONOS node.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
☕Mavenio.atomix:atomixall versionsNo fix

Affected Products

1 product · 1 configurations
Application
atomixatomix
1 version
3.1.5
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

An issue in Atomix v3.1.5 allows attackers to cause a denial of service …

docs.google.comNVDDec 2021

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.atomix:atomix, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    No patched version of io.atomix:atomix has shipped for CVE-2020-35213 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

An issue in Atomix v3.1.5 allows attackers to cause a denial of service (DoS) via false link event messages sent to a master ONOS node.
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CVE-2020-35213: atomix DoS (High 8.1)