Description
Nextcloud server is an open source home cloud implementation. In affected versions the generated fallback password when creating a share was using a weak complexity random number generator, so when the sharer did not change it the password could be guessable to an attacker willing to brute force it. It is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. This issue only affects users who do not have a password policy enabled, so enabling a password policy is an effective mitigation for users unable to upgrade.
Scores
CVSS v3
3.5
EPSS
0.0031
EPSS Percentile
54.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-338
Status
published
Products (2)
nextcloud/nextcloud_server
23.0.0 - 23.0.14
nextcloud/nextcloud_server
24.0.0 - 24.0.10
Published
Mar 30, 2023
Tracked Since
Feb 18, 2026