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    CVE-2026-6681

    The PKCS#7 decode path ignores the caller-supplied output buffer size (outputSz), allowing decoded content to be written past the bounds of the provided buffer. This affects wolfSSL 5.9.0 and earlier and was fixed in the 5.9.1 release.

    Published:Jun 25, 2026
    Last Modified:Jun 26, 2026
    EPS:Jun 25, 2026
    EPSS Score:0.002
    CVSS Score:1

    Affected Products

    Vendor
    Wolfssl
    Product
    Wolfssl

    Exploits

    No exploit reference

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    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