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    CVE-2026-86874

    An out-of-bounds read was addressed with improved input validation. This issue is fixed in Xcode 27. Parsing a maliciously crafted binary may lead to unexpected tool termination.

    Published:Oct 20, 2026
    Last Modified:Oct 20, 2026
    EPS:Oct 20, 2026
    EPSS Score:0.00146
    CVSS Score:3.3

    Affected Products

    Vendor
    Apple
    Product
    Xcode

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2026-86949 (CVSS 8.8) — This issue was addressed by enforcing library validation on the affected binaries. This issue is fixed in Xcod…
    CVE-2026-86948 — This issue was addressed by enforcing library validation on the affected binaries. This issue is fixed in Xcod…
    CVE-2026-86875 (CVSS 4.3) — An input validation issue was addressed with improved input validation. This issue is fixed in Xcode 27. Parsi…
    CVE-2026-65393 (CVSS 5.5) — A permissions issue was addressed with improved validation. This issue is fixed in Xcode 27, macOS Golden Gate…
    CVE-2026-28890 (CVSS 5.5) — An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in Xcode 26.4. An app m…
    CVE-2026-28889 (CVSS 6.2) — A permissions issue was addressed with additional restrictions. This issue is fixed in Xcode 26.4. An app may …
    CVE-2025-31186 (CVSS 3.3) — A permissions issue was addressed with additional restrictions. This issue is fixed in Xcode 16.3. An app may …
    CVE-2025-43504 (CVSS 4.9) — A buffer overflow was addressed with improved bounds checking. This issue is fixed in Xcode 26.1. A user in a …
    CVE-2025-43505 (CVSS 8.8) — An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in Xcode 26.1. …
    CVE-2025-43375 (CVSS 5.5) — The issue was addressed with improved checks. This issue is fixed in Xcode 26. Processing an overly large path…

    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