CVE-2025-6714 | Incorrect Handling of incomplete data may prevent mongoS from Accepting New Connections

MongoDB Server's mongos component can become unresponsive to new connections due to incorrect handling of incomplete data. This affects MongoDB when configured with load balancer support. This issue affects MongoDB Server v6.0 prior to 6.0.23, MongoDB Server v7.0 prior to 7.0.20 and MongoDB Server v8.0 prior to 8.0.9 Required Configuration: This affects MongoDB sharded clusters when configured with load balancer support for mongos using HAProxy on specified ports.

Published: 2025-07-07 Last update: 2025-10-03 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-6714 is rated Moderate Risk (47.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.26%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-6714

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-03 0.06% 0.26% +0.20%
2 2026-03-23 0.03% 0.06% +0.03%
3 2025-12-03 — 0.03% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-6714

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2025-6714

OS Trackers for CVE-2025-6714

vendor priority summary link
ubuntu medium CVE-2025-6714 medium priority: Ubuntu including 1 source packages (mongodb), 10 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 5, deferred 4, released 1. https://ubuntu.com/security/CVE-2025-6714

Affected software / configurations for CVE-2025-6714

Vendor Product Version Raw CPE
mongodb mongodb >= 6.0.0, < 6.0.23 cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
mongodb mongodb >= 7.0.0, < 7.0.20 cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
mongodb mongodb >= 8.0.0, < 8.0.9 cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*

References for CVE-2025-6714

URL Tags
https://jira.mongodb.org/browse/SERVER-106753 Issue Tracking Vendor Advisory
cvelogic Threat Intelligence