What is CVE-2021-1854?

CVE-2021-1854 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2021-09-08.

How severe is CVE-2021-1854?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Apple iOS And Ipados

CVE-2021-1854

A call termination issue with was addressed with improved logic. This issue is fixed in iOS 14.5 and iPadOS 14.5. A legacy cellular network can automatically answer an incoming call when an ongoing call ends or drops. .

Vulnerability class: Broken Access Control

EPSS: 0.007 (50.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Apple Ios And Ipados — versions unspecified
Apple Ipados
Apple Iphone_os

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

product-security@apple.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-1854?: CVE-2021-1854 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2021-09-08.
How severe is CVE-2021-1854?: Medium severity. CVSS v3 base score is 4.3 out of 10.