CVE-2025-8533CWE-863

Incorrect Authorization of XPC Service in Fantastical.app

Medium · published August 7, 2025

CVSS v4.0
6.9
EPSS
0%
Percentile
32.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00391 · 32.0th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2025-08-07T09:59Z
EPSS history
Timeline
  • 07 AUG 09:59Z
    Incorrect Authorization of XPC Service in Fantastical.app
    cvelistv5