CVE-2026-84531CWE-787

CVE-2026-84531

Medium · published September 15, 2026

CVSS v3.1
6.2
EPSS
0%
Percentile
3.8
In the wild
Unconfirmed
What it is

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27. Processing maliciously crafted NTLM input may lead to unexpected app termination.

The record
Technical detail
CVSS v3.1
6.2 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00149 · 3.8th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-09-15T01:17Z
Affected products (3)
ProductVersionsFixed in
apple/ipados< 27.027.0
apple/iphone_os< 27.027.0
apple/macos< 27.027.0
References (2)
https://support.apple.com/en-us/149034 · [email protected]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 write issue was addressed with improved bounds checking
    cvelistv5