CVE-2026-43661CWE-121

CVE-2026-43661

High · published May 12, 2026

CVSS v3.1

7.5

EPSS

Percentile

53.4

In the wild

Unconfirmed

What it is

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5, iOS 26.7 and iPadOS 26.7, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. Processing a maliciously crafted image may corrupt process memory.

The record

Technical detail

CVSS v3.1: 7.5 · HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0: Not supplied
EPSS: 0.00721 · 53.4th percentile
Weakness: CWE-121 · Stack-based Buffer Overflow
Published: 2026-05-12T01:19Z

Affected products (5)

Product	Versions	Fixed in
apple/ipados	< 26.5	26.5
apple/iphone_os	< 26.5	26.5
apple/macos	≥ 26.0, < 26.5	26.5
apple/tvos	< 26.5	26.5
apple/watchos	< 26.5	26.5

References (8)

https://support.apple.com/en-us/127110 · [email protected]https://support.apple.com/en-us/127115 · [email protected]https://support.apple.com/en-us/127118 · [email protected]https://support.apple.com/en-us/127119 · [email protected]https://support.apple.com/en-us/128071 · [email protected]https://support.apple.com/en-us/128072 · [email protected]https://support.apple.com/en-us/148287 · [email protected]https://support.apple.com/en-us/149041 · [email protected]

EPSS history

Timeline

11 MAY 20:08Z
A buffer overflow issue was addressed with improved memory handling
cvelistv5