How severe is CVE-2024-44155?

CVE-2024-44155 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2024-44155 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-44155?

CVE-2024-44155 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-2024-44155?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-44155 have an EU (EUVD) identifier?

Yes. CVE-2024-44155 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-40907.

When was CVE-2024-44155 published?

CVE-2024-44155 was published on 2024-10-28 and last updated on 2026-06-17.

CVE-2024-44155

CVE-2024-44155 is a medium-severity vulnerability in Apple Safari with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-40907
Affected product: Apple Safari
Published: 2024-10-28
Last modified: 2026-06-17

Description

A custom URL scheme handling issue was addressed with improved input validation. This issue is fixed in Safari 18, iOS 17.7.1 and iPadOS 17.7.1, iOS 18 and iPadOS 18, macOS Sequoia 15, watchOS 11. Maliciously crafted web content may violate iframe sandboxing policy.

Frequently asked questions

What is CVE-2024-44155?: A custom URL scheme handling issue was addressed with improved input validation. This issue is fixed in Safari 18, iOS 17.7.1 and iPadOS 17.7.1, iOS 18 and iPadOS 18, macOS Sequoia 15, watchOS 11. Maliciously crafted web content may violate iframe sandboxing policy.
How severe is CVE-2024-44155?: CVE-2024-44155 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2024-44155 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-44155?: CVE-2024-44155 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-2024-44155?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-44155 have an EU (EUVD) identifier?: Yes. CVE-2024-44155 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-40907.
When was CVE-2024-44155 published?: CVE-2024-44155 was published on 2024-10-28 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:*:*:*:*:*:*:*:*

More vulnerabilities in Apple Safari

CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2015-5780 — Critical (CVSS 10.0): The Safari Extensions implementation in Apple Safari before 9 does not require user confirmation before replacing an…
CVE-2014-1303 — Critical (CVSS 10.0): Heap-based buffer overflow in Apple Safari 7.0.2 allows remote attackers to execute arbitrary code and bypass a sandbox…
CVE-2014-1300 — Critical (CVSS 10.0): Unspecified vulnerability in Apple Safari 7.0.2 on OS X allows remote attackers to execute arbitrary code with root…
CVE-2011-3046 — Critical (CVSS 10.0): The extension subsystem in Google Chrome before 17.0.963.78 does not properly handle history navigation, which allows…
CVE-2010-3116 — Critical (CVSS 10.0): Multiple use-after-free vulnerabilities in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google…

All CVEs affecting Apple Safari →