Medium

Safari user interface spoofing via inconsistent UI state management

IdentifiersCVE-2025-43503CWE-451

CVE-2025-43503 is a Safari/UI rendering vulnerability in Apple platforms caused by inconsistent user interface state handling. Apple describes the issue as an "inconsistent user interface issue" that was addressed with improved state management. A remote attacker can trigger the flaw by luring a user to visit a malicious website, resulting in user interface spoofing. The issue affected Safari and Apple platforms including macOS Sonoma and macOS Sequoia, and was 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, and watchOS 26.1.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation may allow a malicious website to spoof browser or system UI elements presented to the user. This can mislead the user about the origin, trust state, or security context of displayed content, enabling phishing-style deception, fraudulent prompts, or other social-engineering attacks. The provided information does not indicate direct code execution or privilege escalation.

Mitigation

If you can’t patch tonight, do this now.

Until patches are applied, reduce exposure by limiting use of untrusted websites and links, especially where browser UI trust indicators are relied upon for authentication or payment flows. User awareness can reduce phishing risk, but no complete mitigation is provided in the available information short of installing the vendor update.

Remediation

Patch, then assume compromise.

Apply Apple's fixes in Safari 26.1, iOS 18.7.2, iPadOS 18.7.2, iOS 26.1, iPadOS 26.1, macOS Tahoe 26.1, visionOS 26.1, and watchOS 26.1. For macOS Sonoma and macOS Sequoia systems, install the corresponding Apple security updates that include the Safari fix for CVE-2025-43503. Apple states the issue was remediated through improved state management.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

AppleIpadosoperating_system

AppleIphone Osoperating_system

AppleSafariapplication

AppleVisionosoperating_system

AppleWatchosoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

4 SOURCESView more in app

zdnet zero dayNews

Jan 24, 2026

About the security content of iOS 26.1 and iPadOS 26.1 - Apple Support

User interface spoofing issue triggered by visiting a malicious website.

apple supportNews

Dec 12, 2025

About the security content of Safari 26.1 - Apple Support (MT)

A user interface spoofing vulnerability affecting macOS Sonoma and macOS Sequoia that could be triggered by visiting a malicious website.

What this page doesn’t show

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This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity2