CVE-2021-33828

8.8 highEPSS 1.2%

High (8.8) in owncloud files antivirus. EPSS 1.2% chance of exploitation in the next 30 days.

The files_antivirus component before 1.0.0 for ownCloud mishandles the protection mechanism by which malicious files (that have been uploaded to a public share) are supposed to be deleted upon detection.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2022-01-15
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

owncloud:files_antivirus

References

https://doc.owncloud.com/server/admin_manual/release_notes.html
https://owncloud.com/security-advisories/cve-2021-33828/
https://doc.owncloud.com/server/admin_manual/release_notes.html
https://owncloud.com/security-advisories/cve-2021-33828/

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