# CVE-2025-12657: The KMIP response parser built into mongo binaries is overly tolerant of certain malformed packets, and may parse them into invalid objects.

Source: https://junglewise.ai/threats/cve-2025-12657-the-kmip-response-parser-built-into-mongo-binaries-is-overly  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-11-03  
License: CC BY 4.0 with a link back

CVE-2025-12657 · Severity: medium · CVSS 5 · Published 2025-11-03

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.

Technologies: [MongoDB](https://junglewise.ai/threats/technologies/mongodb). Vendors: [MongoDB](https://junglewise.ai/threats/vendors/mongodb).

## Quick answers

**Is CVE-2025-12657 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-12657 being exploited in the wild.

**How severe is CVE-2025-12657?** Medium severity, with a CVSS score of 5, published 3 November 2025.

**Which products and versions are affected?** MongoDB. The advisory does not name versions.

**Is there a fix for CVE-2025-12657?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2025-12657?** Check whether you run MongoDB. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- MongoDB

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