# CVE-2025-12657: Malformed KMIP response may result in access violation

> CVE-2025-12657: Malformed KMIP response may result in access violation. CVSS 5.0 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-12657
Last updated: 2026-10-18T21:10:00Z

- Published: 2025-11-03 21:03 UTC · Updated: 2026-10-18 21:10 UTC · Assigner: mongodb
- CVSS: 5.0 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:H
- EPSS: 0.39%, 33th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-754

## Description

The KMIP response parser built into mongo binaries is overly tolerant of certain malformed packets, and may parse them into invalid objects. Later reads of this object can result in read access violations.

## Affected vendors and products

- MongoDB Inc.: MongoDB 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-2025-12657)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-12657)
- [https://jira.mongodb.org/browse/SERVER-101230](https://jira.mongodb.org/browse/SERVER-101230)

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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-2025-12657 · Markdown: https://rewindex.com/cve/CVE-2025-12657.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-12657 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:17.931Z