VULNERABILITY INTELLIGENCE
CVE-2021-32800
CVSS score8.1 HIGH
EPSS probability1.80%
CISA KEVNot currently listed
Published2021-09-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Description
Nextcloud server is an open source, self hosted personal cloud. In affected versions an attacker is able to bypass Two Factor Authentication in Nextcloud. Thus knowledge of a password, or access to a WebAuthN trusted device of a user was sufficient to gain access to an account. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.1.0. There are no workaround for this vulnerability.
Weakness classification
- security-advisories@github.com: CWE-306
- nvd@nist.gov: CWE-306
Primary references
- security-advisories@github.com — Third Party Advisory
- security-advisories@github.com — Patch, Third Party Advisory
- security-advisories@github.com — Permissions Required, Third Party Advisory
- security-advisories@github.com — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Permissions Required, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory