CVE-2021-22906
MEDIUMCVSS 6.5/10EPSS 0.72%
Last modified
CVE-2021-22906 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Nextcloud End-to-End Encryption before 1.5.3, 1.6.3 and 1.7.1 suffers from a denial of service vulnerability due to permitting any authenticated users to lock files of other users.. EPSS estimates a 0.72% chance of exploitation in the next 30 days.
Description
Nextcloud End-to-End Encryption before 1.5.3, 1.6.3 and 1.7.1 suffers from a denial of service vulnerability due to permitting any authenticated users to lock files of other users.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | End-To-End Encryption | < 1.5.3 |
| Nextcloud | End-To-End Encryption | >= 1.6.0, < 1.6.3 |
| Nextcloud | End-To-End Encryption | >= 1.7.0, < 1.7.1 |
References
- https://hackerone.com/reports/1189174Exploit, Issue Tracking, Third Party Advisory
- https://hackerone.com/reports/1189174Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-22906?
Nextcloud End-to-End Encryption before 1.5.3, 1.6.3 and 1.7.1 suffers from a denial of service vulnerability due to permitting any authenticated users to lock files of other users.
How severe is CVE-2021-22906?
CVE-2021-22906 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.72% probability of exploitation in the next 30 days.
How do I fix CVE-2021-22906?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-22906?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST