What’s Vulnerable › Vulnerabilities

CVE-2020-8140

• Severity: medium (CVSS 6.7 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: 2020-03-20 · updated 2026-06-17
• Weakness: CWE-94

Description

A code injection in Nextcloud Desktop Client 2.6.2 for macOS allowed to load arbitrary code when starting the client with DYLD_INSERT_LIBRARIES set in the environment.

Affected products

• Desktop Client: before 2.6.3 — fixed in 2.6.3

How to fix

Upgrade to a fixed version: Desktop Client 2.6.3. Check the vendor advisory for mitigations.

References

• https://hackerone.com/reports/633266
• https://nextcloud.com/security/advisory/?id=NC-SA-2020-016
• https://hackerone.com/reports/633266
• https://nextcloud.com/security/advisory/?id=NC-SA-2020-016

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