CVE-2021-1871 vulnerability in Apple and Other Products
Published on April 2, 2021
Known Exploited Vulnerability
This Apple iOS Privilege Escalation and Code Execution Chain vulnerability is part of CISA's list of Known Exploited Vulnerabilities. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
The following remediation steps are recommended / required by November 17, 2021: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2021-1871 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors in an automatable fashion. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Products Associated with CVE-2021-1871
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-1871 are published in these products:
Affected Versions
Apple iOS and iPadOS:- Version unspecified and below 14.4 is affected.
- Version unspecified and below 11.2 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.