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CVE Record

CVE-2021-41392: static/main-preload.js in Boost Note through 0.22.0 allows remote command execution.

static/main-preload.js in Boost Note through 0.22.0 allows remote command execution. A remote attacker may send a crafted IPC message to the exposed vulnerable ipcRenderer IPC interface, which invokes the dangerous openExternal Electron API.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Boost Note through 0.22.0 has a reported remote command execution flaw in its Electron preload code. If reachable, an attacker could abuse an exposed IPC interface to trigger dangerous external handling. The source bundle does not provide CVSS, a named fix, or evidence of active exploitation.

Executive priority

Treat this as a high-priority endpoint software risk if Boost Note is present. The business urgency depends on installed footprint because the sources do not show broad exploitation or a confirmed patch path.

Technical view

The report names static/main-preload.js exposing a vulnerable ipcRenderer IPC interface. A crafted IPC message may invoke Electron's openExternal API, creating remote command execution risk. Available data identifies Boost Note through 0.22.0, but product metadata, CWE, scoring, and remediation details are incomplete.

Likely exposure

Exposure is most likely where Boost Note through 0.22.0 is installed and attacker-controlled input can reach the exposed IPC interface. The bundle does not identify server-side exposure, CPEs, operating systems, or deployment prevalence.

Exploitation context

The CVE source describes a crafted IPC message path to command execution. It is not listed in KEV, and the provided sources do not claim active exploitation or public weaponization.

Researcher notes

Evidence is sparse but specific: the vulnerable component and IPC-to-openExternal behavior are named. Validate assumptions against the GitHub issue and CVE record before assigning exploitability in your environment.

Mitigation direction

  • Inventory endpoints for Boost Note through 0.22.0 or earlier.
  • Review the BoostIO issue and vendor guidance for fixed-version information.
  • Prioritize removal or replacement where no vendor-confirmed fix is available.
  • Limit use with untrusted content until remediation is confirmed.
  • Document any accepted risk for remaining installations.

Validation and detection

  • Confirm installed Boost Note versions across managed endpoints.
  • Check whether static/main-preload.js is present in installed application packages.
  • Review endpoint telemetry for unusual external process launches from Boost Note.
  • Verify remediation by confirming affected versions are removed or replaced.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2021-41392 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.