What is CVE-2025-12119?

CVE-2025-12119 is a medium-severity vulnerability in MongoDB C Driver, classified under CWE-825. CVSS score: 6.8/10. Published 2025-11-18.

How severe is CVE-2025-12119?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in MongoDB C Driver

CVE-2025-12119

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

Published 2025-11-18 · last modified 2026-10-07.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L.

EPSS exploit prediction

EPSS: 0.002 (10.9th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

MongoDB C Driver — versions 1.9.0, 2.0.0
MongoDB C Driver
MongoDB PHP Driver — versions 0
MongoDB PHP Driver

Weakness classification (CWE)

CWE-825

References

github.com/mongodb/mongo-php-driver/releases/tag/1.21.2 (Release Notes)
github.com/mongodb/mongo-c-driver/releases/tag/1.30.6 (Release Notes)
github.com/mongodb/mongo-c-driver/releases/tag/2.1.2 (Release Notes)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2025-12119?: CVE-2025-12119 is a medium-severity vulnerability in MongoDB C Driver, classified under CWE-825. CVSS score: 6.8/10. Published 2025-11-18.
How severe is CVE-2025-12119?: Medium severity. CVSS v3 base score is 6.8 out of 10.