CVE-2026-86900CWE-125

CVE-2026-86900

Medium · published September 15, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
26.6
In the wild
Unconfirmed
What it is

An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27. Mounting a maliciously crafted exFAT volume may cause unexpected system termination or kernel memory disclosure.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00343 · 26.6th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-09-15T01:17Z
Affected products (1)
ProductVersionsFixed in
apple/macos< 27.027.0
References (1)
https://support.apple.com/en-us/149035 · [email protected]
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 14 SEP 20:48Z
    An out-of-bounds read issue was addressed with improved input validation
    cvelistv5