CVE-2026-86901CWE-787

CVE-2026-86901

High · published September 15, 2026

CVSS v3.1
7.1
EPSS
0%
Percentile
6.0
In the wild
Unconfirmed
What it is

An out-of-bounds write issue was addressed with improved bounds checking. 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
7.1 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00170 · 6.0th percentile
Weakness
CWE-787 · Out-of-bounds Write
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 20:49Z
    An out-of-bounds write issue was addressed with improved bounds checking
    cvelistv5