CVE-2024-7755Network attack vector

Credential disclosure via Base64-encoded network transmission

Published Oct 17, 2024 · Updated Oct 17, 2024

Insufficient credential protection in HMS Networks Ewon Flexy 202 firmware 14.2s0 allows remote attackers to decode captured credentials. The gateway places credentials in network traffic using reversible Base64 encoding rather than cryptographic protection, allowing packet captures to recover plaintext values. Access to the affected network path and user interaction that causes credential transmission are required; recovered credentials grant device access.

CVSS severity7.1
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient credential protection in HMS Networks Ewon Flexy 202 firmware 14.2s0 allows remote attackers to decode captured credentials. The gateway places credentials in network traffic using reversible Base64 encoding rather than cryptographic protection, allowing packet captures to recover plaintext values. Access to the affected network path and user interaction that causes credential transmission are required; recovered credentials grant device access.

The record

CVE
CVE-2024-7755
Published
Oct 17, 2024
Updated
Oct 17, 2024
Vendor
HMS Networks
Product
Ewon Flexy 202
Classifications
CWE-522, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 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=14.2s0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HMS Networks · Ewon Flexy 202version=14.2s0

Published CVSS scores

7.1ICS-CERTCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
8.2ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/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-522Insufficiently Protected Credentials
T1040Network Sniffing

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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