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CVE-2026-43707

Published: Jun 29, 2026Updated: Jul 27, 2026 Sources: CVE List NVDCWE-119
6.5MEDIUM
NVD MITRE
EPSS Score
0.7%
Top 49.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected process crash.

In plain language

AI Low urgency

This is a Safari/iPhone/iPad/Mac web-browsing bug that can make the browser crash if it opens specially crafted web content. Most small businesses should update, but there’s no clear evidence it’s being exploited in the wild.

Executive summary

A memory corruption flaw in Safari (including iOS/iPadOS/macOS) can be triggered by processing maliciously crafted web content, leading to an unexpected browser process crash; fixed in Safari 26.5.2 / iOS 26.5.2 / iPadOS 26.5.2 / macOS Tahoe 26.5.2.

If affected, business impact
Browser crashes during web useDisruption to staff productivityRisk of lost work from crashesPotential service interruptions from bad links

What to do now

  1. Check the versions of Safari and your device OS (iOS/iPadOS/macOS) on the computers and mobile devices your business uses.
  2. If any device is not on 26.5.2, plan an update as soon as possible.
  3. Update to Safari 26.5.2 (and iOS/iPadOS 26.5.2 / macOS Tahoe 26.5.2 as applicable) and confirm the update completed successfully.
  4. After updating, test opening a few normal business websites to ensure browsing is stable.
Usually a quick update

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-119

Affected Products

Apple
commercial·USaka apple inc., apple computer
SafariOn-premDesktop App
Consumer Software / browser
iOS and iPadOSEmbeddedOS
Operating Systems / mobile-os
macOSOn-premOS
Operating Systems / unix-bsd
tvOSEmbeddedOS
Operating Systems / mobile-os
visionOSOS
Operating Systems / mobile-os
watchOSEmbeddedOS
Operating Systems / mobile-os
ipadosEmbeddedOS
Operating Systems / mobile-os
and 3 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2026-43707?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://support.apple.com/en-us/127594
support.apple.com
https://support.apple.com/en-us/127595
support.apple.com
https://support.apple.com/en-us/127685
support.apple.com
and 3 more references View all →
News mentions
3

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