How to fix CVE-2025-43440?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Is Apple affected by CVE-2025-43440?

Organizations using This should be aware of notable risk from CVE-2025-43440, a cross-site scripting vulnerability rated CVSS 6.5. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

CVE-2025-43440

MEDIUM

2025-11-04 [email protected]

6.5

CVSS 3.1

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Patch Released

Apr 06, 2026 - 08:30 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 19:20 vuln.today

CVE Published

Nov 04, 2025 - 02:15 nvd

MEDIUM 6.5

Description

This issue was addressed with improved checks This issue is fixed in tvOS 26.1, watchOS 26.1, macOS Tahoe 26.1, iOS 26.1 and iPadOS 26.1, Safari 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected process crash.

Analysis

This issue was addressed with improved checks This issue is fixed in tvOS 26.1, watchOS 26.1, macOS Tahoe 26.1, iOS 26.1 and iPadOS 26.1, Safari 26.1, visionOS 26.1. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. This issue was addressed with improved checks This issue is fixed in tvOS 26.1, watchOS 26.1, macOS Tahoe 26.1, iOS 26.1 and iPadOS 26.1, Safari 26.1, visionOS 26.1. Processing maliciously crafted web content may lead to an unexpected process crash. Affected products include: Apple Safari, Apple Ipados, Apple Iphone Os, Apple Tvos, Apple Visionos.

Affected Products

Apple Safari, Apple Ipados, Apple Iphone Os, Apple Tvos, Apple Visionos.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.1

CVSS: +32

POC: 0

Vendor Status

CVE-2025-43440 vulnerability details – vuln.today

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CVE-2025-43440

CVSS Vector

Lifecycle Timeline

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Description

Analysis

Technical Context

Affected Products

Remediation

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CVE-2025-43440

CVSS Vector

Lifecycle Timeline

Tags

Description

Analysis

Technical Context

Affected Products

Remediation

Priority Score

Vendor Status

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External POC / Exploit Code