CVE-2025-6706Network attack vector

Authenticated service crash via SBE use-after-free

Published Jun 26, 2025 · Updated Jun 26, 2025

Use-after-free in MongoDB Server before 6.0.21, 7.0.17, or 8.0.4 allows remote authenticated users to crash the server. With SBE enabled, a specific combination of rarely used aggregation pipeline expressions accesses freed memory during query execution. Any authenticated database user who can issue the crafted aggregation operation can terminate mongod without shutdown authorization; other unexpected behavior is not publicly characterized.

CVSS severity5.0
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in MongoDB Server before 6.0.21, 7.0.17, or 8.0.4 allows remote authenticated users to crash the server. With SBE enabled, a specific combination of rarely used aggregation pipeline expressions accesses freed memory during query execution. Any authenticated database user who can issue the crafted aggregation operation can terminate mongod without shutdown authorization; other unexpected behavior is not publicly characterized.

The record

CVE
CVE-2025-6706
Published
Jun 26, 2025
Updated
Jun 26, 2025
Vendor
MongoDB
Product
MongoDB Server
Classifications
CWE-416, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.0 <6.0.21
  2. Affected versionversion=7.0 <7.0.17
  3. Affected versionversion=8.0 <8.0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MongoDB · MongoDB Serverversion=6.0 <6.0.21; version=7.0 <7.0.17; version=8.0 <8.0.4

Published CVSS scores

5.0MongoDB, Inc.CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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