CVE-2021-22879
CVSS v3
8.8
HIGH
EPSS Score
5.0 %
exploit probability, as of 2026-10-19
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
- CVE-2021-22879 Red Hat Product Security
nextcloud: missing URL validation allowed RCE for the server on the desktop client
Description
Nextcloud Desktop Client prior to 3.1.3 is vulnerable to resource injection by way of missing validation of URLs, allowing a malicious server to execute remote commands. User interaction is needed for exploitation.
Technical details
- Published
- 2021-04-14
Frequently asked questions
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