Information disclosure in Apple iOS And Ipados
CVE-2026-64778
The issue was addressed with improved checks. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, tvOS 27, visionOS 27, watchOS 27. Visiting a maliciously crafted website may leak sensitive data.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (24.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
Weakness classification (CWE)
References
- support.apple.com/en-us/148281 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/148282 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/148287 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/148286 (Release Notes, Vendor Advisory)
- support.apple.com/en-us/149036
- support.apple.com/en-us/149037
- support.apple.com/en-us/149038
Frequently asked questions
- What is CVE-2026-64778?
- CVE-2026-64778 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Information Disclosure. CVSS score: 6.5/10. Published 2026-08-17.
- How severe is CVE-2026-64778?
- Medium severity. CVSS v3 base score is 6.5 out of 10.