CVE-2026-84516 Information disclosure in macOS
An out-of-bounds read in macOS allows attackers to disclose process memory or cause app termination via malicious files.
- 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
- None listed
What is CVE-2026-84516?
CVE-2026-84516 is a high-severity vulnerability in Apple Macos, published on 14 Sep 2026. 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
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Processing a maliciously crafted file may result in unexpected app termination or disclosure of process memory.
Weakness: CWE-125
Which versions are affected by CVE-2026-84516?
It affects 1 product.
Products include Apple Macos.
How do I fix CVE-2026-84516?
No fix has been published for CVE-2026-84516 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-84516 being exploited?
There is no known exploitation of CVE-2026-84516 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as GHSA-fxmp-f25c-m5c5.