CVE-2021-30770
MEDIUMCVSS 5.5/10EPSS 0.37%
Last modified
CVE-2021-30770 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A logic issue was addressed with improved validation. This issue is fixed in iOS 14.7, tvOS 14.7, watchOS 7.6. EPSS estimates a 0.37% chance of exploitation in the next 30 days.
Description
A logic issue was addressed with improved validation. This issue is fixed in iOS 14.7, tvOS 14.7, watchOS 7.6. An attacker that has already achieved kernel code execution may be able to bypass kernel memory mitigations.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Iphone Os | < 14.7 |
| Apple | Tvos | < 14.7 |
| Apple | Watchos | < 7.6 |
References
- https://support.apple.com/en-us/HT212601Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212604Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212605Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212601Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212604Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212605Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-30770?
A logic issue was addressed with improved validation. This issue is fixed in iOS 14.7, tvOS 14.7, watchOS 7.6. An attacker that has already achieved kernel code execution may be able to bypass kernel memory mitigations.
How severe is CVE-2021-30770?
CVE-2021-30770 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30770?
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-2021-30770?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST