CVE-2021-1803
LOWCVSS 3.3/10EPSS 0.58%
Last modified
CVE-2021-1803 is a low-severity vulnerability rated 3.3/10 on the CVSS scale. The issue was addressed with improved permissions logic. This issue is fixed in macOS Big Sur 11.0.1. EPSS estimates a 0.58% chance of exploitation in the next 30 days.
Description
The issue was addressed with improved permissions logic. This issue is fixed in macOS Big Sur 11.0.1. A local application may be able to enumerate the user's iCloud documents.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Macos | < 11.0.1 |
References
- https://support.apple.com/en-us/HT211931Vendor Advisory
- https://support.apple.com/en-us/HT211931Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-1803?
The issue was addressed with improved permissions logic. This issue is fixed in macOS Big Sur 11.0.1. A local application may be able to enumerate the user's iCloud documents.
How severe is CVE-2021-1803?
CVE-2021-1803 has a CVSS score of 3.3/10 (LOW severity). The EPSS model estimates a 0.58% probability of exploitation in the next 30 days.
How do I fix CVE-2021-1803?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-1803?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST