What is CVE-2018-10403?

CVE-2018-10403 is a high-severity vulnerability in F-Secure Xfence, classified under Improper Certificate Validation. CVSS score: 7.8/10. Published 2018-06-13.

How severe is CVE-2018-10403?

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

Vulnerability in F-Secure Xfence

CVE-2018-10403

An issue was discovered in F-Secure XFENCE and Little Flocker. A maliciously crafted Universal/fat binary can evade third-party code signing checks. By not completing full inspection of the Universal/fat binary, the user of the third-party tool will believe that the code is signed by Apple, but the malicious unsigned code will execute.

Vulnerability class: Improper Certificate Validation

EPSS: 0.008 (54.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

F-secure Xfence
N/a — versions n/a

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-10403?: CVE-2018-10403 is a high-severity vulnerability in F-Secure Xfence, classified under Improper Certificate Validation. CVSS score: 7.8/10. Published 2018-06-13.
How severe is CVE-2018-10403?: High severity. CVSS v3 base score is 7.8 out of 10.