CVE-2025-43434
4.3
MEDIUM
CVSS 3.1
EPSS 0.06%
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.1, iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. Processing maliciously crafted web content may lead to an unexpected Safari crash.
How to fix CVE-2025-43434
To remediate CVE-2025-43434, upgrade the affected package to a fixed version below.
- Debian/webkit2gtk—upgrade to 2.50.2-1~deb11u1 or later
- —no fix listed
Is CVE-2025-43434 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.50.2-1~deb11u1
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |