CVE-2020-35213Public exploitNetwork attack vector

Network disruption via unchecked forged link events

Published Dec 16, 2021 · Updated Aug 4, 2024

Denial of service in Atomix 3.1.5 allows remote authenticated users to interrupt a master ONOS node through forged link events. A crafted RaftCommandRequest reports a nonexistent link, and the master writes and propagates it through eventually consistent storage without checking topology integrity. Cluster membership or equivalent low-privileged access is required; the poisoned topology persists until devices reconnect or the master restarts.

CVSS severity8.1
High
EPSS probability1.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Atomix 3.1.5 allows remote authenticated users to interrupt a master ONOS node through forged link events. A crafted RaftCommandRequest reports a nonexistent link, and the master writes and propagates it through eventually consistent storage without checking topology integrity. Cluster membership or equivalent low-privileged access is required; the poisoned topology persists until devices reconnect or the master restarts.

The record

CVE
CVE-2020-35213
Published
Dec 16, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-74, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 16, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:P
8.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1565.001Stored Data Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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