What’s Vulnerable › Vulnerabilities

CVE-2021-42950

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-03-03 · updated 2026-07-09

Description

Remote Code Execution (RCE) vulnerability exists in Zepl Notebooks all previous versions before October 25 2021. Users can register for an account and are allocated a set number of credits to try the product. Once users authenticate, they can proceed to create a new organization by which additional users can be added for various collaboration abilities, which allows malicious user to create new Zepl Notebooks with various languages, contexts, and deployment scenarios. Upon creating a new notebook with specially crafted malicious code, a user can then launch remote code execution.

Affected products

• Zepl: before 2021-10-25 — fixed in 2021-10-25

How to fix

Upgrade to a fixed version: Zepl 2021-10-25. Check the vendor advisory for mitigations.

References

• https://seclists.org/fulldisclosure/2022/Feb/31
• https://seclists.org/fulldisclosure/2022/Feb/31

Get alerted when CVE-2021-42950 or the next vulnerability affects your stack