What’s Vulnerable › Vulnerabilities
CVE-2019-8840
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-10-27 · updated 2026-06-17
- Weakness: CWE-125
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.
Affected products
- Apple Xcode: before 11.3 — fixed in 11.3
How to fix
Upgrade to a fixed version: Apple Xcode 11.3. Check the vendor advisory for mitigations.
References
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