CVE-2026-65377 — A memory corruption issue was addressed with improved memory handling

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MEDIUM

A memory corruption issue was addressed with improved memory handling

Published Sep 14, 2026

5.5

MEDIUM

CVSS 3.1

EPSS 0.16%

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause unexpected system termination.

Affected products

Vendor Apple Product iOS and iPadOS Default
n/a
- Version
  0
  Status
  affected
  Constraints
  <26.7
- Version
  0
  Status
  affected
  Constraints
  <27
Vendor Apple Product macOS Default
n/a
- Version
  0
  Status
  affected
  Constraints
  <15.8
- Version
  0
  Status
  affected
  Constraints
  <26.7
- Version
  0
  Status
  affected
  Constraints
  <27
Vendor Apple Product tvOS Default
n/a
- Version
  0
  Status
  affected
  Constraints
  <27
Vendor Apple Product visionOS Default
n/a
- Version
  0
  Status
  affected
  Constraints
  <27
Vendor Apple Product watchOS Default
n/a
- Version
  0
  Status
  affected
  Constraints
  <27

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Apple

iOS and iPadOS

n/a

Version	Status	Constraints
0	affected	<26.7
0	affected	<27

Apple

macOS

n/a

Version	Status	Constraints
0	affected	<15.8
0	affected	<26.7
0	affected	<27

Apple

tvOS

n/a

Version	Status	Constraints
0	affected	<27

Apple

visionOS

n/a

Version	Status	Constraints
0	affected	<27

Apple

watchOS

n/a

Version	Status	Constraints
0	affected	<27

Remediation

No remediation recorded yet.

Metrics

0.16% 0.00158

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00158

Score over time

Sep–Oct 2026

EPSS v5

Percentile over time

EPSS v5

Table of values (2 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.16% (0.00158)	4.31th	v5 (v2026.06.15)
Sep 15, 2026	0.21% (0.00208)	11.11th	v5 (v2026.06.15)

Weaknesses (2)

CWE-125

Out-of-bounds Read

CWE-416

Use After Free

References (8)

https://support.apple.com/en-us/149034
Release NotesVendor Advisory
https://support.apple.com/en-us/149035
Release NotesVendor Advisory
https://support.apple.com/en-us/149036
Release NotesVendor Advisory
https://support.apple.com/en-us/149037
Release NotesVendor Advisory
https://support.apple.com/en-us/149038
Release NotesVendor Advisory
https://support.apple.com/en-us/149041
Release NotesVendor Advisory
https://support.apple.com/en-us/149042
Release NotesVendor Advisory
https://support.apple.com/en-us/149043
Release NotesVendor Advisory

Link	Providers	Tags
https://support.apple.com/en-us/149034		Release NotesVendor Advisory
https://support.apple.com/en-us/149035		Release NotesVendor Advisory
https://support.apple.com/en-us/149036		Release NotesVendor Advisory
https://support.apple.com/en-us/149037		Release NotesVendor Advisory
https://support.apple.com/en-us/149038		Release NotesVendor Advisory
https://support.apple.com/en-us/149041		Release NotesVendor Advisory
https://support.apple.com/en-us/149042		Release NotesVendor Advisory
https://support.apple.com/en-us/149043		Release NotesVendor Advisory