CVE-2021-30851
HIGHCVSS 8.8/10EPSS 2.32%
Last modified
CVE-2021-30851 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 15, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. EPSS estimates a 2.32% chance of exploitation in the next 30 days.
Description
A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 15, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing maliciously crafted web content may lead to code execution.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Safari | < 15.0 |
| Apple | Ipados | < 15.0 |
| Apple | Iphone Os | < 15.0 |
| Apple | Macos | < 12.0.1 |
| Apple | Macos | 12.0.1 |
| Apple | Tvos | < 15.0 |
| Apple | Watchos | < 8.0 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
| Fedoraproject | Fedora | 33 |
| Fedoraproject | Fedora | 34 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-30851?
A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 15, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing maliciously crafted web content may lead to code execution.
How severe is CVE-2021-30851?
CVE-2021-30851 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.32% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30851?
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-2021-30851?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST