CVE-2020-8150

low-risk
Published 2020-11-09

A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files.

Do I need to act?

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0.04% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.1/10 Medium
LOCAL / HIGH complexity

Affected Products (1)

Affected Vendors

Nextcloud

References (10)

Mailing List http://seclists.org/fulldisclosure/2020/Dec/55
Mailing List http://seclists.org/fulldisclosure/2020/Dec/57
Mailing List http://seclists.org/fulldisclosure/2020/Dec/58
Exploit https://hackerone.com/reports/742588
Vendor Advisory https://nextcloud.com/security/advisory/?id=NC-SA-2020-039
Mailing List http://seclists.org/fulldisclosure/2020/Dec/55
Mailing List http://seclists.org/fulldisclosure/2020/Dec/57
Mailing List http://seclists.org/fulldisclosure/2020/Dec/58
Exploit https://hackerone.com/reports/742588
Vendor Advisory https://nextcloud.com/security/advisory/?id=NC-SA-2020-039
16
/ 100
low-risk
Severity 11/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal