CVE-2021-30889
HIGHCVSS 8.8/10EPSS 1.93%
Last modified
CVE-2021-30889 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.0.1, iOS 15.1 and iPadOS 15.1, watchOS 8.1, tvOS 15.1. EPSS estimates a 1.93% chance of exploitation in the next 30 days.
Description
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.0.1, iOS 15.1 and iPadOS 15.1, watchOS 8.1, tvOS 15.1. Processing maliciously crafted web content may lead to arbitrary 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 | Ipados | < 15.1 |
| Apple | Iphone Os | < 15.1 |
| Apple | Macos | < 12.0.1 |
| Apple | Tvos | < 15.1 |
| Apple | Watchos | < 8.1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-30889?
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.0.1, iOS 15.1 and iPadOS 15.1, watchOS 8.1, tvOS 15.1. Processing maliciously crafted web content may lead to arbitrary code execution.
How severe is CVE-2021-30889?
CVE-2021-30889 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.93% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30889?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-30889?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST