Resource management error in iPadOS and Apple iOS - CVE-2021-1854
Published: April 28, 2021
Vulnerability identifier: #VU52702
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1854
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass gain access to sensitive information.
The vulnerability exists due to the way incoming calls are handled. A legacy cellular network can automatically answer an incoming call when an ongoing call ends or drops.
Affected software
iPadOS
Apple iOS
Apple iOS
How to mitigate CVE-2021-1854
Install updates from vendor's website.
iPadOS - update to 14.5 18E199
Apple iOS - update to 14.5 18E199
Apple iOS - update to 14.5 18E199