Medium severity · published Jun 29, 2026
CVE-2026-43707
A memory corruption issue was addressed with improved memory handling
6.5
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 26.5.2 · source: vendor, NVD
IO
iOS · Apple
before 26.5.2 · source: NVD
SA
Safari · Apple
before 26.5.2 · source: vendor, NVD
IA
iOS and iPadOS · Apple
before 26.5.2 · source: vendor
TV
tvOS · Apple
before 26.6 · source: vendor
VI
visionOS · Apple
before 26.6 · source: vendor
WA
watchOS · Apple
before 26.6 · source: vendor
In the news
VulnerabilityCritical
Apple Patches 30+ iOS, macOS, Safari Flaws, Including AI-Discovered WebKit Bugs
Apple on Monday released security updates for iOS, macOS, and the Safari web browser to address over three dozen flaws, including four vulnerabilities in WebKit that were discovered using artificial intelligence (AI) tools like Anthropic Claude and OpenAI Codex Security.
The WebKit vulnerabilities are listed below -
CVE-2026-43707 - A memory corruption issue that could result in an
Jun 29, 2026·The Hacker News
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-43707
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-43707
Vendor Advisory
https://support.apple.com/en-us/127594
Vendor Advisory
https://support.apple.com/en-us/127595
Vendor Advisory
https://support.apple.com/en-us/127685
support.apple.com
https://support.apple.com/en-us/128068
support.apple.com
https://support.apple.com/en-us/128069
support.apple.com
https://support.apple.com/en-us/128070
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