← Vulnerability feed

Vulnerability record · CVE-2026-43656 · published 11 May 2026

CVE-2026-43656: Apple ipados out-of-bounds write vulnerability

Apple · Ipados

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Parsing a maliciously crafted file may lead to an unexpected app termination.

7.3 CVSS 3.1 High EPSS 0.39% · top 69.3% CWE-787 · Out-of-bounds write
7.3CVSS 3.1 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Parsing a maliciously crafted file may lead to an unexpected app termination.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.apple.com/en-us/127110 Release NotesVendor Advisory
https://support.apple.com/en-us/127111 Release NotesVendor Advisory
https://support.apple.com/en-us/127115 Release NotesVendor Advisory
https://support.apple.com/en-us/127116 Release NotesVendor Advisory
https://support.apple.com/en-us/127117 Release NotesVendor Advisory

Track CVE-2026-43656 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2025-43300Apple iOS, iPadOS and macOS out-of-bounds write via malicious imageAn out-of-bounds write in Apple iOS, iPadOS and macOS is triggered when processing a malicious image file, causing memory corruption. Apple states th…KEVEPSS 22%analysed10.0CVE-2025-24201Apple WebKit out-of-bounds write allows sandbox escapeCVE-2025-24201 is an out-of-bounds write in Apple's WebKit that was addressed with improved checks. Maliciously crafted web content may break out of …KEVEPSS 3.8%analysed10.0CVE-2025-24085Apple iOS, iPadOS, macOS, tvOS, visionOS, watchOS Use-After-Free Privilege EscalationA use-after-free flaw in Apple's operating systems was fixed through improved memory management in iOS 18.3, iPadOS 18.3 and 17.7.6, macOS Sequoia 15…KEVEPSS 18%analysed9.8CVE-2026-65400Apple macOS Screen Sharing authentication bypassAn improper authentication flaw in Apple macOS Screen Sharing allows a network attacker to authenticate without valid credentials. Apple fixed it via…KEVEPSS 1.2%analysed9.8CVE-2025-31200Apple OS media parsing memory corruption allows code executionA memory corruption flaw in Apple's audio stream processing was fixed with improved bounds checking across iOS, iPadOS, macOS, tvOS, visionOS and wat…KEVEPSS 19%analysed9.8CVE-2025-31201Apple OS Pointer Authentication bypass via arbitrary read/writeApple removed vulnerable code that allowed an attacker holding arbitrary read and write capability to bypass Pointer Authentication across iOS, iPadO…KEVEPSS 14%analysed9.8CVE-2022-22587Apple iOS, iPadOS and macOS kernel memory corruption via out-of-bounds writeAn out-of-bounds write (CWE-787) in Apple iOS, iPadOS and macOS is caused by insufficient input validation and can corrupt memory. Apple states it is…KEVEPSS 12%analysed9.8CVE-2021-1870Apple WebKit logic flaw allows remote code executionA logic issue in Apple's WebKit was addressed with improved restrictions, affecting macOS Big Sur, Catalina, Mojave, iOS and iPadOS, plus WebKitGTK a…KEVEPSS 7.7%analysed

Source: NIST National Vulnerability Database (record CVE-2026-43656), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.