Medium severity · published Feb 25, 2023
CVE-2023-25816
Nextcloud is an Open Source private cloud software
6.5
CVSS
1.4%
EPSS
No
On KEV
Description
Nextcloud is an Open Source private cloud software. Versions 25.0.0 and above, prior to 25.0.3, are subject to Uncontrolled Resource Consumption. A user can configure a very long password, consuming more resources on password validation than desired. This issue is patched in 25.0.3 No workaround is available.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NS
Nextcloud Server · Nextcloud
25.0.0 before 25.0.3; 25.0.0 before 25.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-25816
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-25816
Vendor Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-53q2-cm29-7j83
Patch
https://github.com/nextcloud/server/pull/35965
Exploit
https://hackerone.com/reports/1820864
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