CVE-2026-28931

A buffer overflow was addressed with improved bounds checking

High · published July 27, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
41.6
In the wild
Unconfirmed
What it is

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, watchOS 26.6. Connecting to a malicious NFS server may lead to kernel memory corruption.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00495 · 41.6th percentile
Published
2026-07-27T20:14Z
EPSS history
Timeline
  • 27 JUL 20:14Z
    A buffer overflow was addressed with improved bounds checking
    cvelistv5