How severe is CVE-2024-54542?

CVE-2024-54542 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2024-54542 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-54542?

CVE-2024-54542 primarily affects Apple Safari. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-54542?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2024-54542 have an EU (EUVD) identifier?

Yes. CVE-2024-54542 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-52636.

When was CVE-2024-54542 published?

CVE-2024-54542 was published on 2025-01-27 and last updated on 2026-06-17.

CVE-2024-54542

CVE-2024-54542 is a critical-severity vulnerability in Apple Safari with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-52636
Weakness: CWE-862
Affected product: Apple Safari
Published: 2025-01-27
Last modified: 2026-06-17

Description

An authentication issue was addressed with improved state management. This issue is fixed in Safari 18.2, iOS 18.2 and iPadOS 18.2, macOS Sequoia 15.2, watchOS 11.2. Private Browsing tabs may be accessed without authentication.

Frequently asked questions

What is CVE-2024-54542?: An authentication issue was addressed with improved state management. This issue is fixed in Safari 18.2, iOS 18.2 and iPadOS 18.2, macOS Sequoia 15.2, watchOS 11.2. Private Browsing tabs may be accessed without authentication.
How severe is CVE-2024-54542?: CVE-2024-54542 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2024-54542 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-54542?: CVE-2024-54542 primarily affects Apple Safari. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-54542?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-54542 have an EU (EUVD) identifier?: Yes. CVE-2024-54542 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-52636.
When was CVE-2024-54542 published?: CVE-2024-54542 was published on 2025-01-27 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

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