CVE-2025-12994Network attack vector

Account enumeration via security-question API responses

Published Dec 4, 2025 · Updated Dec 8, 2025

Observable response discrepancy in Medtronic CareLink Network before December 4, 2025 allows remote attackers to enumerate valid accounts. The security-question API endpoint produces distinguishable responses when requests reference valid accounts, revealing account existence without authentication. The flaw is limited to the non-medical portion of the hosted service; it discloses account-validity information but causes no reported direct patient harm.

CVSS severity5.3
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Observable response discrepancy in Medtronic CareLink Network before December 4, 2025 allows remote attackers to enumerate valid accounts. The security-question API endpoint produces distinguishable responses when requests reference valid accounts, revealing account existence without authentication. The flaw is limited to the non-medical portion of the hosted service; it discloses account-validity information but causes no reported direct patient harm.

The record

CVE
CVE-2025-12994
Published
Dec 4, 2025
Updated
Dec 8, 2025
Vendor
Medtronic
Product
CareLink Network
Classifications
CWE-204, CAPEC-575, T1589
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 8, 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=0 <December 4, 2025

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Medtronic · CareLink Networkversion=0 <December 4, 2025

Published CVSS scores

5.3MedtronicCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-204Observable Response Discrepancy
CAPEC-575Account Footprinting
T1589Gather Victim Identity Information

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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