Review reviewCritical

CVE-2021-42952

zepl

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 internal Zepl assets including cloud metadata services.

CVSS
9.9
EPSS
1.56%
72.8% percentile
CISA KEV
Not listed
Published
2022.02.26
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability1.56%
Technical severityCVSS 9.9

Vulnerability overview

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 internal Zepl assets including cloud metadata services.

Affected product and versions

Product
zepl
Affected versions
< 2021-10-25
Fixed versions
2021-10-25

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that zepl and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
Not available