Privilege escalation in Apple iOS And Ipados

CVE-2021-1851

A logic issue was addressed with improved state management. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. An application may be able to execute arbitrary code with kernel privileges.

Vulnerability class: Privilege Escalation

EPSS: 0.022 (80.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-1851?
CVE-2021-1851 is a high-severity vulnerability in Apple iOS And Ipados, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2021-09-08.
How severe is CVE-2021-1851?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-1851 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.