CVE-2026-86876 Memory corruption in iOS and iPadOS
A sandboxed process can circumvent sandbox restrictions due to an out-of-bounds write, allowing privilege escalation on Apple devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86876?
CVE-2026-86876 is a medium-severity memory corruption vulnerability in Apple Ipados, published on 14 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27, watchOS 27. A sandboxed process may be able to circumvent sandbox restrictions.
Weakness: CWE-787
Which versions are affected by CVE-2026-86876?
It affects 5 products.
Products include Apple Ipados, Apple Iphone Os, Apple Macos, Apple Visionos, Apple Watchos.
How do I fix CVE-2026-86876?
No fix has been published for CVE-2026-86876 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-2026-86876 being exploited?
There is no known exploitation of CVE-2026-86876 in the wild and no public exploit code.
Other vulnerabilities in Apple Ipados
- CVE-2025-43300 Apple iOS, iPadOS, and macOS Out-of-Bounds Write
- CVE-2025-24201 Apple Multiple Products WebKit Out-of-Bounds Write
- CVE-2025-24085 Apple Multiple Products Use-After-Free
- CVE-2025-31200 Apple Multiple Products Memory Corruption
- CVE-2025-31201 Apple Multiple Products Arbitrary Read and Write
Sources
Also known as GHSA-9rgh-hpwq-qxmv.