CVE-2018-10403

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-06-13 · updated 2026-06-17
Weakness: CWE-295

Description

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.

Affected products

F-Secure Xfence: all versions

References

https://www.okta.com/security-blog/2018/06/issues-around-third-party-apple-code-signing-checks/
https://www.okta.com/security-blog/2018/06/issues-around-third-party-apple-code-signing-checks/

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