CVE-2019-8540
MEDIUMCVSS 5.5/10EPSS 1.59%
Last modified
CVE-2019-8540 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, macOS Mojave 10.14.4, tvOS 12.2, watchOS 5.2. EPSS estimates a 1.59% chance of exploitation in the next 30 days.
Description
A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, macOS Mojave 10.14.4, tvOS 12.2, watchOS 5.2. A malicious application may be able to determine kernel memory layout.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Iphone Os | < 12.2 |
| Apple | Mac Os X | < 10.14.4 |
| Apple | Tvos | < 12.2 |
| Apple | Watchos | < 5.2 |
References
- https://support.apple.com/HT209599Vendor Advisory
- https://support.apple.com/HT209600Vendor Advisory
- https://support.apple.com/HT209601Vendor Advisory
- https://support.apple.com/HT209602Vendor Advisory
- https://support.apple.com/HT209599Vendor Advisory
- https://support.apple.com/HT209600Vendor Advisory
- https://support.apple.com/HT209601Vendor Advisory
- https://support.apple.com/HT209602Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-8540?
A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, macOS Mojave 10.14.4, tvOS 12.2, watchOS 5.2. A malicious application may be able to determine kernel memory layout.
How severe is CVE-2019-8540?
CVE-2019-8540 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.59% probability of exploitation in the next 30 days.
How do I fix CVE-2019-8540?
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-2019-8540?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST