CVE-2024-6921Network attack vector

Credential disclosure via cleartext credential storage

Published Sep 2, 2024 · Updated Jun 3, 2026

Cleartext credential storage in NACPremium through 01082024 allows remote authenticated users to retrieve embedded usernames and passwords. TR-CERT has not disclosed the storage location, retrieval request, or operation that returns the cleartext credentials. Network access with low privileges is sufficient according to the CNA assessment, and the disclosed consequence is exposure of reusable authentication material.

CVSS severity8.7
High
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

Cleartext credential storage in NACPremium through 01082024 allows remote authenticated users to retrieve embedded usernames and passwords. TR-CERT has not disclosed the storage location, retrieval request, or operation that returns the cleartext credentials. Network access with low privileges is sufficient according to the CNA assessment, and the disclosed consequence is exposure of reusable authentication material.

The record

CVE
CVE-2024-6921
Published
Sep 2, 2024
Updated
Jun 3, 2026
Vendor
NAC Telecommunication Systems Inc.
Product
NACPremium
Classifications
CWE-312, CAPEC-37, T1552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 3, 2026Record 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 <=01082024

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NAC Telecommunication Systems Inc. · NACPremiumversion=0 <=01082024

Published CVSS scores

8.7Computer Emergency Response Team of the Republic of TurkeyCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
CAPEC-37Retrieve Embedded Sensitive Data
T1552Unsecured Credentials

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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