Sandbox escape via insufficient Calendar path validation
Published Mar 31, 2025 · Updated Jun 18, 2026
Path validation in Calendar on affected Apple operating systems allows local users to escape an application's sandbox through a malicious app. Apple identifies Calendar as the locus but has not disclosed which path operation accepts inadequately validated input. Exploitation requires a locally installed app and crosses its sandbox boundary, with limited confidentiality, integrity, and availability effects.
Summary
What happened
Path validation in Calendar on affected Apple operating systems allows local users to escape an application's sandbox through a malicious app. Apple identifies Calendar as the locus but has not disclosed which path operation accepts inadequately validated input. Exploitation requires a locally installed app and crosses its sandbox boundary, with limited confidentiality, integrity, and availability effects.
The record
- CVE
- CVE-2025-30429
- Published
- Mar 31, 2025
- Updated
- Jun 18, 2026
- Vendor
- Apple
- Product
- iOS and iPadOS
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 31, 2025CVE publishedPublication date reported by the CVE source.
- Jun 18, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <18.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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