CVE-2025-43342: safari before 26.0 (exclusive); +14 more affected products

CVE-2025-43342. CVSS 3.1 base score 9.8 (CRITICAL, Source advisory). EPSS 0.00747 (percentile 0.53974), scored 17-Oct-2026.

Affected technology

safari · before 26.0 (exclusive)
apple

ipados · before 18.7 (exclusive)
apple

iphone os · before 18.7 (exclusive)
apple

macos · before 26.0 (exclusive)
apple

tvos · before 26.0 (exclusive)
apple

visionos · before 26.0 (exclusive)
apple

watchos · before 26.0 (exclusive)
apple

webkitgtk · before 2.48.7 (exclusive)
webkitgtk

wpe webkit · before 2.48.7 (exclusive)
wpewebkit

Safari · 0 to before 26
Apple

iOS and iPadOS · 0 to before 18.7, 0 to before 26
Apple

macOS · 0 to before 26
Apple

tvOS · 0 to before 26
Apple

visionOS · 0 to before 26
Apple

watchOS · 0 to before 26
Apple

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 18-Oct-2026 22:51 UTC

CWE: CWE-20
CCR priority: 39.4 /100 (P4)
CVSS 3.1: 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · Source advisory
EPSS: 0.00747 · percentile 0.53974 · 2026-10-17
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-18 22:50:08.248207+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-43342.html