CVE-2025-43343

CRITICAL EPSS 49.2%
Published Sep 15, 20259mo ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Sep 15, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
49.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety

Affected Products 9

VendorProductVersionRange
applesafari* <26.0
appleipados* <26.0
appleiphone_os* <26.0
applemacos* <26.0
appletvos* <26.0
applevisionos* <26.0
applewatchos* <26.0
webkitgtkwebkitgtk* <2.50.1
wpewebkitwpe_webkit* <2.50.1

References 15

  • seclists.org http://seclists.org/fulldisclosure/2025/Sep/49
    Mailing ListThird Party Advisory
  • seclists.org http://seclists.org/fulldisclosure/2025/Sep/53
    Mailing ListThird Party Advisory
  • seclists.org http://seclists.org/fulldisclosure/2025/Sep/57
    Mailing ListThird Party Advisory
  • seclists.org http://seclists.org/fulldisclosure/2025/Sep/59
    Mailing ListThird Party Advisory
  • openwall.com http://www.openwall.com/lists/oss-security/2025/10/13/4
    Mailing ListThird Party Advisory
  • access.redhat.com https://access.redhat.com/errata/RHSA-2025:19946
  • security-tracker.debian.org https://security-tracker.debian.org/tracker/CVE-2025-43343
  • support.apple.com https://support.apple.com/en-us/125108
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/125110
  • support.apple.com https://support.apple.com/en-us/125113
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/125114
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/125115
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/125116
    Release NotesVendor Advisory
  • ubuntu.com https://ubuntu.com/security/CVE-2025-43343
  • webkitgtk.org https://webkitgtk.org/security/WSA-2025-0007.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.