CVE-2022-41969Network attack vector

Administrator-triggered service interruption via unbounded passwords

Published Dec 1, 2022 · Updated Apr 23, 2025

Uncontrolled resource consumption in Nextcloud Server before 23.0.11, 24.0.7, and 25.0.0 allows remote authenticated users to interrupt service. The administrative user-creation path passes an arbitrarily long password into password processing without enforcing the 469-character limit later added by the patch. Administrative access and account creation are required, and the resulting resource consumption causes a limited availability interruption.

CVSS severity2.4
Low
EPSS probability0.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in Nextcloud Server before 23.0.11, 24.0.7, and 25.0.0 allows remote authenticated users to interrupt service. The administrative user-creation path passes an arbitrarily long password into password processing without enforcing the 469-character limit later added by the patch. Administrative access and account creation are required, and the resulting resource consumption causes a limited availability interruption.

The record

CVE
CVE-2022-41969
Published
Dec 1, 2022
Updated
Apr 23, 2025
Vendor
Nextcloud GmbH
Product
Security Advisories
Classifications
CWE-400, CWE-521, T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 1, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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=< 23.0.11
  2. Affected versionversion=>= 24.0.0, < 24.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Nextcloud GmbH · Security Advisoriesversion=< 23.0.11; version=>= 24.0.0, < 24.0.7

Published CVSS scores

2.4GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CWE-521Weak Password Requirements
T1499.004Application or System Exploitation

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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