CVE-2019-8840
HIGHCVSS 8.8/10EPSS 1.27%
Last modified
CVE-2019-8840 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in Xcode 11.3. EPSS estimates a 1.27% chance of exploitation in the next 30 days.
Description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in Xcode 11.3. Compiling with untrusted sources may lead to arbitrary code execution with user privileges.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Xcode | < 11.3 |
References
- https://support.apple.com/en-us/HT210796Vendor Advisory
- https://support.apple.com/en-us/HT210796Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-8840?
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in Xcode 11.3. Compiling with untrusted sources may lead to arbitrary code execution with user privileges.
How severe is CVE-2019-8840?
CVE-2019-8840 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.27% probability of exploitation in the next 30 days.
How do I fix CVE-2019-8840?
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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- CVE-2019-8845Rejected reason: This candidate is unused by its CNA.
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Are you affected by CVE-2019-8840?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST