CVE-2025-8533
MEDIUM EPSS 28.4%
Published Aug 7, 202510mo ago · Modified Jun 17, 20261w ago
6.9 CVSS 4.0
Published Aug 7, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
28.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-863 Incorrect Authorization Authorization
References 2
- cert.pl https://cert.pl/en/posts/2025/08/CVE-2025-8533
- flexibits.com https://flexibits.com/fantastical
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.