Vulnerability in Apple Ipados

CVE-2021-30855

A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, iOS 15 and iPadOS 15, watchOS 8, macOS Big Sur 11.6. An application may be able to access restricted files.

EPSS: 0.024 (82.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-30855?
CVE-2021-30855 is a medium-severity vulnerability in Apple Ipados, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2021-08-24.
How severe is CVE-2021-30855?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-30855 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.