CVE-2025-12657

Malformed KMIP response may result in access violation

MEDIUM
5.5
CVSS Score
Published: November 3, 2025 at 09:03 PM UTC
Updated: October 18, 2026 at 09:10 PM UTC
1 product affected across 1 vendorMongoDB

Using MongoDB Server by MongoDB Inc.?

Get instant alerts when new vulnerabilities affect MongoDB Server - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions6.0.0 ≤ v < 7.0.228.0.0 ≤ v < 8.0.106.08.0
Affected range stops below 7.0.22, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.0.10, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-754

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card