CVE-2019-8766 Memory corruption in iCloud for Windows
Attackers can execute arbitrary code by tricking users into viewing malicious web content on Apple watchOS or iCloud for Windows.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-8766?
CVE-2019-8766 is a high-severity memory corruption vulnerability in Apple Icloud, published on 18 Dec 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in watchOS 6.1, iCloud for Windows 11.0. Processing maliciously crafted web content may lead to arbitrary code execution.
Weakness: CWE-787
Which versions are affected by CVE-2019-8766?
It affects 2 products.
Products include Apple Icloud, Apple Watchos.
How do I fix CVE-2019-8766?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-8766 being exploited?
There is no known exploitation of CVE-2019-8766 in the wild and no public exploit code.
Other vulnerabilities in Apple Icloud
Sources
Also known as DEBIAN-CVE-2019-8766, GHSA-7qvc-7cr4-mffx, UBUNTU-CVE-2019-8766.