Description
A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files.
References (5)
Core 5
Core References
Exploit, Third Party Advisory x_refsource_misc
https://hackerone.com/reports/742588
Vendor Advisory x_refsource_misc
https://nextcloud.com/security/advisory/?id=NC-SA-2020-039
Mailing List, Third Party Advisory mailing-list
x_refsource_fulldisc
http://seclists.org/fulldisclosure/2020/Dec/55
Mailing List, Third Party Advisory mailing-list
x_refsource_fulldisc
http://seclists.org/fulldisclosure/2020/Dec/57
Mailing List, Third Party Advisory mailing-list
x_refsource_fulldisc
http://seclists.org/fulldisclosure/2020/Dec/58
Scores
CVSS v3
4.1
EPSS
0.0029
EPSS Percentile
20.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N
Details
CWE
CWE-310
CWE-311
Status
published
Products (1)
nextcloud/nextcloud_server
< 19.0.2
Published
Nov 09, 2020
Tracked Since
Feb 18, 2026