Vulnerability Report

CVE-2025-43343

Title: Apple Safari Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2025-43343.

CWE Category CWE-119
Published Date Sep 15, 2025
Modified Date Apr 02, 2026
Exploit Status Not Found
Score 9.8 CVSS v3.1
Exploit Probability (EPSS)
0.32%

Vulnerability Summary

CVE-2025-43343: The issue was addressed with improved memory handling. This issue is fixed in Safari 26, iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. Processing maliciously crafted web content may lead to an unexpected process crash.

Impacted Vendors

W
wpewebkit 1
A
apple 1
W
webkitgtk 1

Reference Links

https://support.apple.com/en-us/125108 https://support.apple.com/en-us/125113 https://support.apple.com/en-us/125114 https://support.apple.com/en-us/125115 https://support.apple.com/en-us/125116 http://seclists.org/fulldisclosure/2025/Sep/49 http://seclists.org/fulldisclosure/2025/Sep/53 http://seclists.org/fulldisclosure/2025/Sep/57 http://seclists.org/fulldisclosure/2025/Sep/59 http://www.openwall.com/lists/oss-security/2025/10/13/4 https://access.redhat.com/errata/RHSA-2025:19946 https://security-tracker.debian.org/tracker/CVE-2025-43343 https://ubuntu.com/security/CVE-2025-43343 https://webkitgtk.org/security/WSA-2025-0007.html
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-43343 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.