Is CVE-2026-65390 being actively exploited?

CVE-2026-65390 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2026-65390?

CVE-2026-65390 has a CVSS 3.1 base score of 8.8 (HIGH).

CVE-2026-65390

HIGH · CVSS 8.8EPSS 0.4%EU EUVD

An integer overflow was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to memory corruption.

Key facts

CVSS score: 8.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-190
EPSS score: 0.4% (34th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2026-77974)
Published: September 14, 2026
NVD last modified: September 16, 2026
Status: Analyzed

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2026-77974 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2026.

View on the EU Vulnerability Database

Affected products

apple / ipados
apple / iphone os
apple / macos
apple / safari
apple / tvos
apple / visionos
apple / watchos

Certified products that may be affected

38 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Apple macOS 26 Tahoe: FileVault - Apple Inc. - Common Criteria CCEVS-VR-VID-11696-2026 - active
Apple macOS 26 Tahoe - Apple Inc. - Common Criteria CCEVS-VR-VID-11695-2026 - active
Apple macOS 15 Sequoia - Apple Inc. - Common Criteria CCEVS-VR-VID-11648-2026 - active
Strong Customer Authentication for Apple Pay on MacBook Air 2024 with M3running macOS Sequoia 15.4 - Apple Inc. - Common Criteria 2025-11-INF-4674 - active
Apple macOS 14 Sonoma - Apple Inc. - Common Criteria CCEVS-VR-VID-11584-2025 - active

See all 38 in the Security Certifications Explorer.

References

https://support.apple.com/en-us/148281(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/148282(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/148286(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/149036(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/149037(Release Notes, Vendor Advisory)
https://support.apple.com/en-us/149038(Release Notes, Vendor Advisory)

Last updated September 18, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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