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    CVE-2026-20608

    This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. Processing maliciously crafted web content may lead to an unexpected process crash.

    Published:Feb 11, 2026
    Last Modified:Apr 16, 2026
    EPS:Feb 11, 2026
    EPSS Score:0.00014
    CVSS Score:5.5

    Affected Products

    Vendor
    Apple
    Product
    Ios And Ipados
    Vendor
    Apple
    Product
    Ipados
    Vendor
    Apple
    Product
    Iphone Os
    Vendor
    Apple
    Product
    Macos
    Vendor
    Apple
    Product
    Safari
    Vendor
    Apple
    Product
    Visionos

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-100 Overflow Buffers
    CAPEC-125 Flooding
    CAPEC-130 Excessive Allocation
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-147 XML Ping of the Death
    CAPEC-197 Exponential Data Expansion
    CAPEC-229 Serialized Data Parameter Blowup
    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-42 MIME Conversion
    CAPEC-44 Overflow Binary Resource File
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-469 HTTP DoS
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-482 TCP Flood
    CAPEC-486 UDP Flood
    CAPEC-487 ICMP Flood
    CAPEC-488 HTTP Flood
    CAPEC-489 SSL Flood
    CAPEC-490 Amplification
    CAPEC-491 Quadratic Data Expansion
    CAPEC-493 SOAP Array Blowup
    CAPEC-494 TCP Fragmentation
    CAPEC-495 UDP Fragmentation
    CAPEC-496 ICMP Fragmentation
    CAPEC-528 XML Flood
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities
    CAPEC-92 Forced Integer Overflow

    Related CVEs

    CVE-2026-65367 (CVSS 5.5) — A null pointer dereference was addressed with improved input validation. This issue is fixed in iOS 18.7.9 and…
    CVE-2026-43657 (CVSS 3.3) — A permissions issue was addressed with additional restrictions. This issue is fixed in iOS 26.5 and iPadOS 26.…
    CVE-2026-43670 (CVSS 8.8) — A Content Security Policy bypass was addressed with improved enforcement in AudioWorklet contexts. This issue …
    CVE-2026-65331 (CVSS 4.3) — This issue was addressed through improved state management. This issue is fixed in Safari 26.6.1, iOS 18.7.10 …
    CVE-2026-64760 (CVSS 5.5) — An information leakage was addressed with additional validation. This issue is fixed in iOS 18.7.10 and iPadOS…
    CVE-2026-43794 (CVSS 8.8) — A memory corruption issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, i…
    CVE-2026-65346 (CVSS 8.8) — An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6.1 and iPadOS…
    CVE-2026-65351 (CVSS 4.3) — This issue was addressed through improved state management. This issue is fixed in Safari 26.6.1, iOS 26.6.1 a…
    CVE-2026-64782 (CVSS 3.1) — A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 26.6.1, i…
    CVE-2026-65347 (CVSS 6.5) — The issue was addressed with improved checks. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe…

    References

    https://support.apple.com/en-us/126346
    https://support.apple.com/en-us/126347
    https://support.apple.com/en-us/126348
    https://support.apple.com/en-us/126353
    https://support.apple.com/en-us/126354
    https://access.redhat.com/errata/RHSA-2026:10702
    https://access.redhat.com/errata/RHSA-2026:11329
    https://access.redhat.com/errata/RHSA-2026:11814
    https://access.redhat.com/errata/RHSA-2026:13845
    https://access.redhat.com/errata/RHSA-2026:14659
    https://access.redhat.com/errata/RHSA-2026:16056
    https://access.redhat.com/errata/RHSA-2026:16695
    https://access.redhat.com/errata/RHSA-2026:19206
    https://access.redhat.com/errata/RHSA-2026:19535
    https://access.redhat.com/errata/RHSA-2026:22136
    https://access.redhat.com/errata/RHSA-2026:9692
    https://access.redhat.com/security/cve/CVE-2026-20608
    https://bugzilla.redhat.com/show_bug.cgi?id=2448789
    https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20608.json

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High