How severe is CVE-2025-43494?

CVE-2025-43494 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-43494 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-43494?

CVE-2025-43494 primarily affects Apple Ipados. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-43494?

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

Does CVE-2025-43494 have an EU (EUVD) identifier?

Yes. CVE-2025-43494 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203160.

When was CVE-2025-43494 published?

CVE-2025-43494 was published on 2025-12-12 and last updated on 2026-06-17.

CVE-2025-43494

CVE-2025-43494 is a high-severity vulnerability in Apple Ipados with a CVSS 3.x base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-203160
Weakness: CWE-20
Affected product: Apple Ipados
Published: 2025-12-12
Last modified: 2026-06-17

Description

A mail header parsing issue was addressed with improved checks. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. An attacker may be able to cause a persistent denial-of-service.

Frequently asked questions

What is CVE-2025-43494?: A mail header parsing issue was addressed with improved checks. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, visionOS 26.1, watchOS 26.1. An attacker may be able to cause a persistent denial-of-service.
How severe is CVE-2025-43494?: CVE-2025-43494 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-43494 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-43494?: CVE-2025-43494 primarily affects Apple Ipados. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-43494?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-43494 have an EU (EUVD) identifier?: Yes. CVE-2025-43494 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203160.
When was CVE-2025-43494 published?: CVE-2025-43494 was published on 2025-12-12 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:26.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:26.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:26.0:*:*:*:*:*:*:*
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

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