CVE-2025-43504: A buffer overflow was addressed with improved bounds checking. This issue is fixed in Xcode 26.1. A user in a…
CVE-2025-43504 · Severity: medium · CVSS 4.9 · Published 2025-11-04
A buffer overflow was addressed with improved bounds checking. This issue is fixed in Xcode 26.1. A user in a privileged network position may be able to cause a denial-of-service.
No. Junglewise Threat Intelligence has no report of CVE-2025-43504 being exploited in the wild.
How severe is CVE-2025-43504?
Medium severity, with a CVSS score of 4.9, published 4 November 2025.
Which products and versions are affected?
Apple Xcode. The advisory does not name versions.
Is there a fix for CVE-2025-43504?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-43504?
Check whether you run Apple Xcode. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.