CVE-2026-86953CWE-787

CVE-2026-86953

Medium · published October 20, 2026

CVSS v3.1
4.6
EPSS
0%
Percentile
7.3
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, tvOS 27, visionOS 27, watchOS 27. An attacker in physical proximity may be able to cause a denial-of-service.

The record
Technical detail
CVSS v3.1
4.6 · MEDIUM
Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00181 · 7.3th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-10-20T05:17Z
References (5)
https://support.apple.com/en-us/149034 · [email protected]https://support.apple.com/en-us/149035 · [email protected]https://support.apple.com/en-us/149036 · [email protected]https://support.apple.com/en-us/149037 · [email protected]https://support.apple.com/en-us/149038 · [email protected]
EPSS history
Timeline
  • 21 OCT 03:32Z
    EPSS moved — → 0%
    epss
  • 20 OCT 00:50Z
    An out-of-bounds write issue was addressed with improved bounds checking
    cvelistv5
  • 20 OCT 00:50Z
    An out-of-bounds write issue was addressed with improved bounds checking
    cvelistv5