CVE-2026-97371

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    CVE-2026-97371

    Published: 5 Nov 2026Last Modified: 7 Nov 2026

    Summary: ntopng: Stack buffer overflow (write) in nDPI custom category detection allows remote code execution via crafted network packets

    Details: ntopng is a web-based network traffic monitoring application. Prior to 6.7.260721, ndpi_get_custom_category_match writes a four-byte nDPI protocol-category value through a pointer to the two-byte id variable in IpAddress::reloadBlacklist in src/IpAddress.cpp during packet dissection and host initialization. A remote unauthenticated attacker on a monitored network segment can send packets that match custom-category rules, causing stack corruption and denial of service without user interaction. This issue is fixed in version 6.7.260721.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97371.json, https://github.com/ntop/ntopng/security/advisories/GHSA-26jm-9qfw-89w7, https://nvd.nist.gov/vuln/detail/CVE-2026-97371, https://github.com/ntop/ntopng/commit/96acb6187950a6a49ca827e49973c3e0c27ea664

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -96acb6187950a6a49ca827e49973c3e0c27ea664

    Affected versions

    3.0

    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-2026-97371 | CVE-DB