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CVE-2025-30466

Apple Safari vulnerability

9.8 CRITICALEPSS 0.30%
  1. Published29 May 2025

Description

This issue was addressed through improved state management. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.4. A website may be able to bypass Same Origin Policy.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Apple Safari< 18.4
Apple iPadOS< 18.4
Apple iPhone OS< 18.4
Apple macOS< 15.4
Apple Visionos< 2.4

Remediation

Fixed in
Apple Safari≥ 18.4
Apple iPadOS≥ 18.4
Apple iPhone OS≥ 18.4
Apple macOS≥ 15.4
Apple Visionos≥ 2.4

References

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Frequently asked

Is CVE-2025-30466 being actively exploited?

CVE-2025-30466 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.30%.

How severe is CVE-2025-30466?

CVE-2025-30466 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.30% probability of exploitation.

Which products are affected by CVE-2025-30466?

Affected products include Apple Safari, Apple iPadOS, Apple iPhone OS, Apple macOS, Apple Visionos.

How do I fix CVE-2025-30466?

Upgrade affected software to a fixed version, for example Apple Safari 18.4, Apple iPadOS 18.4, Apple iPhone OS 18.4 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-30466 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.