CVE-2025-8533 — Incorrect Authorization of XPC Service in Fantastical.app

CVE-2025-8533

Incorrect Authorization of XPC Service in Fantastical.app PUBLISHED

Description (CNA)

A vulnerability was identified in the XPC services of Fantastical. The services failed to implement proper client authorization checks in its listener:shouldAcceptNewConnection method, unconditionally accepting requests from any local process. As a result, any local, unprivileged process could connect to the XPC service and access its methods. This issue has been resolved in version 4.0.16.

Affected (CNA)

Vendor / product	Versions
Flexibits / Fantastical	affected 0 before 4.0.16

CWE

CWE-863

References

https://cert.pl/en/posts/2025/08/CVE-2025-8533
https://flexibits.com/fantastical

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.