CVE-2021-30665 vulnerability in Apple Products
Published on September 8, 2021
Known Exploited Vulnerability
This Apple Safari Webkit Browser Engine Buffer Overflow Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Processing maliciously crafted web content may lead to 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-2021-30665 can be exploited with network 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-2021-30665 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2021-30665
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Affected Versions
Apple macOS:- Version unspecified and below 11.3 is affected.
- Version unspecified and below 14.5 is affected.
- Version unspecified and below 7.4 is affected.
- Version unspecified and below 12.5 is affected.
- Version unspecified and below 14.6 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.