CVE-2021-30900 vulnerability in Apple Products
Published on August 24, 2021
Known Exploited Vulnerability
This Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Apple GPU drivers, included in iOS, iPadOS, and macOS, contain an out-of-bounds write vulnerability that may allow a malicious application to execute code with kernel privileges.
The following remediation steps are recommended / required by April 20, 2023: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2021-30900 is exploitable with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2021-30900 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2021-30900
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Affected Versions
Apple iOS and iPadOS:- Version unspecified and below 15.1 is affected.
- Version unspecified and below 14.8 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.