What’s Vulnerable › Vulnerabilities

CVE-2020-8133

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-11-09 · updated 2026-06-17
• Weakness: CWE-657

Description

A wrong generation of the passphrase for the encrypted block in Nextcloud Server 19.0.1 allowed an attacker to overwrite blocks in a file.

Affected products

• Nextcloud Server: 19.0.1

References

• https://hackerone.com/reports/661051%2C
• https://nextcloud.com/security/advisory/?id=NC-SA-2020-038
• https://hackerone.com/reports/661051
• https://hackerone.com/reports/661051%2C
• https://nextcloud.com/security/advisory/?id=NC-SA-2020-038

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