Vulnerability · Published Sep 14, 2026 · Assigned by apple
CVE-2026-84588
Medium 6.5
In plain English
A medium-severity out-of-bounds write in macOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 73.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A memory corruption issue was addressed by removing the vulnerable code. This issue is fixed in macOS Golden Gate 27. Mounting a maliciously crafted disk image may cause unexpected system termination or corrupt kernel memory.
Affected products (as reported)
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H