CVE-2022-43759Network attack vector

Cluster-wide privilege escalation via PRTB authorization flaw

Published Feb 7, 2023 · Updated Mar 25, 2025

Improper privilege management in Rancher 2.5.0 through 2.5.16 and 2.6.0 through 2.6.9 allows remote authenticated users to escalate privileges. The PRTB authorization logic extends the escalate verb on project role template bindings to any -promoted resource across a cluster. Default exploitation requires Project Owner or Manage Project Members access and grants control over resources such as nodes, storage, API services, repositories, and the local cluster object.

CVSS severity7.2
High
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in Rancher 2.5.0 through 2.5.16 and 2.6.0 through 2.6.9 allows remote authenticated users to escalate privileges. The PRTB authorization logic extends the escalate verb on project role template bindings to any -promoted resource across a cluster. Default exploitation requires Project Owner or Manage Project Members access and grants control over resources such as nodes, storage, API services, repositories, and the local cluster object.

The record

CVE
CVE-2022-43759
Published
Feb 7, 2023
Updated
Mar 25, 2025
Vendor
NeuVector
Product
Rancher
Classifications
CWE-269, CWE-284, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2025Record 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=Rancher <2.5.17
  2. Affected versionversion=Rancher <2.6.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NeuVector · Rancherversion=Rancher <2.5.17; version=Rancher <2.6.10

Published CVSS scores

7.2SUSECVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
CWE-284Improper Access Control
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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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