CVE-2025-43504 Memory corruption in Xcode
A buffer overflow in Apple Xcode allows a privileged network attacker to cause a denial-of-service, requiring an upgrade to the latest version.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-43504?
CVE-2025-43504 is a medium-severity memory corruption vulnerability in Apple Xcode, published on 4 Nov 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-119
Which versions are affected by CVE-2025-43504?
It affects 1 product.
Products include Apple Xcode.
How do I fix CVE-2025-43504?
No fix has been published for CVE-2025-43504 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-43504 being exploited?
There is no known exploitation of CVE-2025-43504 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Apple Xcode
Sources
Also known as GHSA-p867-9m9g-6jj4.