# CVE-2025-11979: Use-after-free in the MongoDB server query planner may lead to crash or undefined behavior

> CVE-2025-11979: Use-after-free in the MongoDB server query planner may lead to crash or undefined behavior. CVSS 5.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-11979
Last updated: 2026-10-08T22:10:00Z

- Published: 2025-10-20 17:47 UTC · Updated: 2026-10-08 22:10 UTC · Assigner: mongodb
- CVSS: 5.3 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS: 0.27%, 19th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-416

## Description

An authorized user may crash the MongoDB server by causing buffer over-read. This can be done by issuing a DDL operation while queries are being issued, under some conditions. This issue affects MongoDB Server v7.0 versions prior to 7.0.25, MongoDB Server v8.0 versions prior to 8.0.15, and MongoDB Server version 8.2.0.

## Affected vendors and products

- MongoDB Inc.: Server

## Tracked companies

- [MongoDB Atlas](https://rewindex.com/company/mongodb-atlas.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-11979)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-11979)
- [https://jira.mongodb.org/browse/SERVER-105873](https://jira.mongodb.org/browse/SERVER-105873)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-11979 · Markdown: https://rewindex.com/cve/CVE-2025-11979.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-11979 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:14:25.718Z