CVE-2021-30786
HIGHCVSS 7/10EPSS 0.77%
Last modified
CVE-2021-30786 is a high-severity vulnerability rated 7/10 on the CVSS scale. A race condition was addressed with improved state handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. EPSS estimates a 0.77% chance of exploitation in the next 30 days.
Description
A race condition was addressed with improved state handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution.
Metrics
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Iphone Os | < 14.7 |
| Apple | Macos | >= 11.0, < 11.5 |
References
- https://support.apple.com/en-us/HT212601Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212602Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212601Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212602Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-30786?
A race condition was addressed with improved state handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution.
How severe is CVE-2021-30786?
CVE-2021-30786 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.77% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30786?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-30786?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST