Vulnerability Description
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 12.5.3. 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..
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Iphone Os | < 12.5.3 |
Related Weaknesses (CWE)
References
- https://support.apple.com/en-us/HT212341Release NotesVendor Advisory
- https://support.apple.com/en-us/HT212341Release NotesVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-Third Party AdvisoryUS Government Resource
FAQ
What is CVE-2021-30666?
CVE-2021-30666 is a vulnerability with a CVSS score of 8.8 (HIGH). A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 12.5.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware ...
How severe is CVE-2021-30666?
CVE-2021-30666 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-30666?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Iphone Os.