CVE-2024-8651Network attack vector

Unauthenticated user enumeration via response discrepancy

Published Sep 19, 2024 · Updated Sep 19, 2024

Observable response discrepancy in NetCat CMS 6.4.0.24126.2 allows remote attackers to identify valid user accounts via crafted HTTP requests. The published advisory does not identify the affected endpoint or disclose how its response handling differs between valid and invalid account identifiers. No authentication or user interaction is required, and the exposed account list supports follow-on attacks without granting direct account access.

CVSS severity6.9
Medium
EPSS probability0.43%
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 NetCat CMS 6.4.0.24126.2 allows remote attackers to identify valid user accounts via crafted HTTP requests. The published advisory does not identify the affected endpoint or disclose how its response handling differs between valid and invalid account identifiers. No authentication or user interaction is required, and the exposed account list supports follow-on attacks without granting direct account access.

The record

CVE
CVE-2024-8651
Published
Sep 19, 2024
Updated
Sep 19, 2024
Vendor
NetCat
Product
NetCat CMS
Classifications
CWE-204, CWE-203, CAPEC-575, T1087
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 19, 2024Record 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=6.4.0.24126.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

NetCat · NetCat CMSversion=6.4.0.24126.2

Published CVSS scores

6.9Kaspersky LabsCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
5.3NIST NVDCVSS: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
CWE-203Observable Discrepancy
CAPEC-575Account Footprinting
T1087Account Discovery

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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