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    CVE-2026-95516

    A flaw was found in the ZBar barcode reader library. A heap-buffer-overflow write of one byte occurs when processing Structured-Append QR codes where the buffer size calculation does not account for NUL separator bytes inserted between decoded segments. An attacker could exploit this by crafting a QR code image that, when scanned by an application using zbar, causes heap corruption leading to a denial of service (application crash).

    Published:Sep 22, 2026
    Last Modified:Oct 21, 2026
    EPS:N/A
    EPSS Score:
    CVSS Score:5.5

    Affected Products

    Vendor
    Zbar
    Product
    Zbar

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    References

    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