CVE-2025-12119
MongoDB vulnerability analysis and mitigation

Overview

A vulnerability was identified in MongoDB's C Driver (CVE-2025-12119) where a mongoc_bulk_operation_t may read invalid memory if large options are passed. The vulnerability was disclosed on November 18, 2025 (NVD).

Technical details

The vulnerability is classified as a CWE-825 (Expired Pointer Dereference) with a CVSS v4.0 base score of 6.9 (MEDIUM) and CVSS v3.1 base score of 6.8 (MEDIUM). The vulnerability requires local access (AV:L) with low attack complexity (AC:L) and low privileges (PR:L). The vulnerability primarily impacts confidentiality with high severity (VC:H) and has low impact on availability (VA:L) (NVD).

Impact

The vulnerability affects multiple versions of the MongoDB C Driver, including versions up to 1.30.6 and 2.1.2. The issue could lead to invalid memory reads when processing large options in bulk operations (MongoDB Release, MongoDB Release).

Mitigation and workarounds

The vulnerability has been fixed in MongoDB C Driver versions 1.30.6 and 2.1.2, and MongoDB PHP Driver version 1.21.2. Users are advised to upgrade to these patched versions (MongoDB Release, MongoDB Release, PHP Driver).

Additional resources


SourceThis report was generated using AI

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