CVE-2026-6244

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    CVE-2026-6244

    Published: 5 Sept 2026Last Modified: 27 Sept 2026

    Summary: division by zero in libpcap before 1.10.7

    Details: libpcap BPF interpreter for the 'div #k' and 'mod #k' ALU instructions does not check whether the immediate value is zero. In particular uncommon use cases a crafted filter program can cause a division by zero.

    References: https://github.com/the-tcpdump-group/libpcap/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6244.json, https://nvd.nist.gov/vuln/detail/CVE-2026-6244, https://github.com/the-tcpdump-group/libpcap/commit/98bb921b141aa642faedbf2ac510541c76499a19

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -98bb921b141aa642faedbf2ac510541c76499a19

    Affected versions

    libpcap-1.10.6
    libpcap-1.10.5
    libpcap-1.10.4
    libpcap-1.10.3
    libpcap-1.10.2
    libpcap-1.10.1
    libpcap-1.10.0

    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
    CVE-2026-6244 | CVE-DB