A mongoc_bulk_operation_t may read invalid memory if large options are passed.

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4438 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4438-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                  Roberto C. Snchez     January 14, 2026                              https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : mongo-c-driver     Version        : 1.17.6-1+deb11u2     CVE ID         : CVE-2025-12119

    A vulnerability has been discovered in mongo-c-driver, the MongoDB C     client library. If large options are passed, mongoc_bulk_operation_t may     read invalid memory.

    For Debian 11 bullseye, this problem has been fixed in version     1.17.6-1+deb11u2.

    We recommend that you upgrade your mongo-c-driver packages.

    For the detailed security status of mongo-c-driver please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/mongo-c-driver

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A mongoc_bulk_operation_t may read invalid memory if large options are passed. (CVE-2025-12119)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A mongoc_bulk_operation_t may read invalid memory if large options are passed. (CVE-2025-12119)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
284512	Debian dla-4438 : libbson-1.0-0 - security update	Nessus	Debian Local Security Checks	medium
436108	SCA: security update for mongodb/mongodb-extension (GHSA-mwcc-7vpp-xmv9)	Tenable Cloud Security	SCA Checks	medium
436108	SCA: security update for mongodb/mongodb-extension (GHSA-mwcc-7vpp-xmv9)	Tenable Self-Hosted Container Security	SCA Checks	medium
275784	Linux Distros Unpatched Vulnerability : CVE-2025-12119	Nessus	Misc.	medium

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CVE-2025-12119

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