{"id":"CVE-2021-42952","title":"Zepl Notebooks before 2021-10-25 are affected by a sandbox escape vulnerability","summary":"Zepl Notebooks before 2021-10-25 are affected by a sandbox escape vulnerability. Upon launching Remote Code Execution from the Notebook, users can then use that to subsequently escape the running context sandbox and proceed to access int…","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","vendor":"zepl","product":"zepl","affected":["zepl < 2021-10-25"],"patched":["zepl 2021-10-25"],"published":"2022-02-25","updated":"2026-07-05","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-42952","references":[{"url":"https://seclists.org/fulldisclosure/2022/Feb/32","label":"cve@mitre.org"},{"url":"http://zepl.com","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://seclists.org/fulldisclosure/2022/Feb/32","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.01571,"epssPercentile":0.74304,"ingestedAt":"2026-07-06T17:03:23.909Z","slug":"CVE-2021-42952","body":"## Overview\n\nZepl Notebooks before 2021-10-25 are affected by a sandbox escape vulnerability. Upon launching Remote Code Execution from the Notebook, users can then use that to subsequently escape the running context sandbox and proceed to access internal Zepl assets including cloud metadata services.\n\n## Affected\n\n- `zepl < 2021-10-25`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `zepl 2021-10-25`","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":54.5,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}