What is CVE-2026-2637?

CVE-2026-2637 is a high-severity vulnerability in Iboysoft Ntfs, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2026-03-03.

How severe is CVE-2026-2637?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Iboysoft Ntfs

CVE-2026-2637

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.

EPSS: 0.002 (6.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Iboysoft Ntfs — versions 8.0.0
Iboysoft Ntfs_for_mac — versions 8.0

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

help@fluidattacks.com (Exploit, Third Party Advisory, third-party-advisory)
help@fluidattacks.com (Product, product)

Frequently asked questions

What is CVE-2026-2637?: CVE-2026-2637 is a high-severity vulnerability in Iboysoft Ntfs, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2026-03-03.
How severe is CVE-2026-2637?: High severity. CVSS v3 base score is 7.8 out of 10.