CVE-2023-51740Network attack vector

Credential disclosure via cleartext login submission

Published Jan 17, 2024 · Updated Nov 13, 2024

Cleartext credential transmission in Skyworth Digital CM5100 4.1.1.24 and earlier allows remote attackers to read login credentials. The web interface's login page sends the supplied username and password across the network without transport protection, making both values readable in captured traffic. Exploitation requires a position that can observe the victim's login traffic; the documented consequence is credential disclosure rather than data modification or service interruption.

CVSS severity7.5
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext credential transmission in Skyworth Digital CM5100 4.1.1.24 and earlier allows remote attackers to read login credentials. The web interface's login page sends the supplied username and password across the network without transport protection, making both values readable in captured traffic. Exploitation requires a position that can observe the victim's login traffic; the documented consequence is credential disclosure rather than data modification or service interruption.

The record

CVE
CVE-2023-51740
Published
Jan 17, 2024
Updated
Nov 13, 2024
Vendor
Skyworth Digital
Product
CM5100
Classifications
CWE-319, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 13, 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=0 <=4.1.1.24

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Skyworth Digital · CM5100version=0 <=4.1.1.24

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5CERT-InCVSS: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information
T1040Network Sniffing

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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