| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE ID | CVE-2020-8295 |
| CWE ID | CWE-400 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Nextcloud Server Client/Desktop applications / Messaging software |
| Vendor | Nextcloud |
This security advisory describes one medium risk vulnerability.
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]
CVE-ID: CVE-2020-8295
CWE-ID:
CWE-400 - Uncontrolled Resource Consumption ('Resource Exhaustion')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when resetting a user password. A remote attacker can perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsNextcloud Server: 18.0.0, 18.0.1, 18.0.2, 18.0.3, 18.0.4, 18.0.5, 18.0.6, 18.0.7, 18.0.8, 18.0.9, 18.0.10, 19.0.0, 19.0.1, 19.0.2, 19.0.3, 19.0.4
CPEhttps://nextcloud.com/security/advisory/?id=NC-SA-2021-003
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.