Buffer overflow in Apple Ios And Ipados
CVE-2026-20664
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash.
Vulnerability class: Buffer Overflow
EPSS: 0.007 (50.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
Affected products
- Apple Ios And Ipados — versions 0
- Apple Ipados
- Apple Iphone_os
- Apple Macos — versions 0
- Apple Safari — versions 0
- Apple Visionos — versions 0
Weakness classification (CWE)
References
- product-security@apple.com (Release Notes, Vendor Advisory)
- product-security@apple.com (Release Notes, Vendor Advisory)
- product-security@apple.com (Release Notes, Vendor Advisory)
- product-security@apple.com (Release Notes, Vendor Advisory)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2026-20664?
- CVE-2026-20664 is a medium-severity vulnerability in Apple Ios And Ipados, classified under Out-of-bounds Write. CVSS score: 4.3/10. Published 2026-03-25.
- How severe is CVE-2026-20664?
- Medium severity. CVSS v3 base score is 4.3 out of 10.