CVE-2021-30817
MEDIUMCVSS 5.5/10EPSS 0.61%
Last modified
CVE-2021-30817 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A permissions issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.5. EPSS estimates a 0.61% chance of exploitation in the next 30 days.
Description
A permissions issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.5. A malicious application may be able to access data about the accounts the user is using Family Sharing with.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Macos | < 11.5 |
References
- https://support.apple.com/en-us/HT212602Vendor Advisory
- https://support.apple.com/en-us/HT212602Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-30817?
A permissions issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.5. A malicious application may be able to access data about the accounts the user is using Family Sharing with.
How severe is CVE-2021-30817?
CVE-2021-30817 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30817?
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.
Are you affected by CVE-2021-30817?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST