CVE-2026-83601Public exploitNetwork attack vectorHinoki check available

Parent-agent crash via dimension-slot allocation overflow

Published Sep 22, 2026 · Updated Sep 22, 2026

Integer overflow in Netdata Agent before 2.10.4 allows remote authenticated users to crash a parent agent via a dimension slot. pluginsd_rrddim_put_to_slot passes an uncapped stream value to prd_array_create, whose size calculation wraps while the original array length controls initialization writes. A valid streaming API key and parent-child streaming are required; exploitation terminates the parent and halts its monitoring, alerting, and data collection.

CVSS severity6.5
Medium
EPSS probability0.37%
Next 30 days · Oct 18, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Integer overflow in Netdata Agent before 2.10.4 allows remote authenticated users to crash a parent agent via a dimension slot. pluginsd_rrddim_put_to_slot passes an uncapped stream value to prd_array_create, whose size calculation wraps while the original array length controls initialization writes. A valid streaming API key and parent-child streaming are required; exploitation terminates the parent and halts its monitoring, alerting, and data collection.

The record

CVE
CVE-2026-83601
Published
Sep 22, 2026
Updated
Sep 22, 2026
Vendor
Netdata
Product
Netdata Agent
Classifications
CWE-190, CWE-787, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.10.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Netdata · Netdata Agentversion=< 2.10.4

Published CVSS scores

6.5Netdata GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
CWE-787Out-of-bounds Write
T1499.004Application or System Exploitation

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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