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    CVE-2026-87875

    The cupsUTF32ToUTF8() function in CUPS's cups/transcode.c lacks a source-length bound and can read past the end of the source buffer, resulting in a heap out-of-bounds read. This is reachable via SNMP supply-description parsing in backend/snmp-supplies.c with attacker-controlled content.

    Published:Sep 9, 2026
    Last Modified:Sep 10, 2026
    EPS:Sep 9, 2026
    EPSS Score:0.00317
    CVSS Score:4.3

    Affected Products

    Vendor
    Openprinting
    Product
    Cups
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Hardened Images
    Vendor
    Redhat
    Product
    Hummingbird
    Vendor
    Redhat
    Product
    Openshift
    Vendor
    Redhat
    Product
    Openshift Container Platform

    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

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    CVE-2026-39314 (CVSS 4) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versio…
    CVE-2026-34980 (CVSS 6.1) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versio…
    CVE-2026-34979 (CVSS 5.3) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versio…
    CVE-2026-34978 (CVSS 6.5) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versio…
    CVE-2026-34990 (CVSS 5) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versio…
    CVE-2026-27447 (CVSS 4.8) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versio…
    CVE-2025-58436 (CVSS 5.1) — OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to …

    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