How severe is CVE-2023-51740?

CVE-2023-51740 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-51740 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51740?

CVE-2023-51740 affects Skyworthdigital Cm5100 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-51740?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-51740 have an EU (EUVD) identifier?

Yes. CVE-2023-51740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56437.

When was CVE-2023-51740 published?

CVE-2023-51740 was published on 2024-01-17 and last updated on 2026-06-17.

CVE-2023-51740

CVE-2023-51740 is a high-severity vulnerability in Skyworthdigital Cm5100 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-319.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-56437
Weakness: CWE-319
Affected product: Skyworthdigital Cm5100 Firmware
Published: 2024-01-17
Last modified: 2026-06-17

Description

This vulnerability exist in Skyworth Router CM5100, version 4.1.1.24, due to transmission of authentication credentials in plaintext over the network. A remote attacker could exploit this vulnerability by eavesdropping on the victim’s network traffic to extract username and password from the web interface (Login Page) of the vulnerable targeted system.

Frequently asked questions

What is CVE-2023-51740?: This vulnerability exist in Skyworth Router CM5100, version 4.1.1.24, due to transmission of authentication credentials in plaintext over the network. A remote attacker could exploit this vulnerability by eavesdropping on the victim’s network traffic to extract username and password from the web interface (Login Page) of the vulnerable targeted system.
How severe is CVE-2023-51740?: CVE-2023-51740 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-51740 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51740?: CVE-2023-51740 affects Skyworthdigital Cm5100 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-51740?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-51740 have an EU (EUVD) identifier?: Yes. CVE-2023-51740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56437.
When was CVE-2023-51740 published?: CVE-2023-51740 was published on 2024-01-17 and last updated on 2026-06-17.

References

https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2024-0013

Affected products (1)

cpe:2.3:o:skyworthdigital:cm5100_firmware:4.1.1.24:*:*:*:*:*:*:*

More vulnerabilities in Skyworthdigital Cm5100 Firmware

CVE-2018-20398 — Critical (CVSS 9.8): Skyworth CM5100 V1.1.0, CM5100-440 V1.2.1, CM5100-511 4.1.0.14, CM5100-GHD00 V1.2.2, and CM5100.g2 4.1.0.17 devices…
CVE-2023-51741 — High (CVSS 7.5): This vulnerability exist in Skyworth Router CM5100, version 4.1.1.24, due to transmission of authentication credentials…
CVE-2023-51739 — Medium (CVSS 6.9): This vulnerability exist in Skyworth Router CM5100, version 4.1.1.24, due to insufficient validation of user supplied…
CVE-2023-51738 — Medium (CVSS 6.9): This vulnerability exist in Skyworth Router CM5100, version 4.1.1.24, due to insufficient validation of user supplied…
CVE-2023-51737 — Medium (CVSS 6.9): This vulnerability exist in Skyworth Router CM5100, version 4.1.1.24, due to insufficient validation of user supplied…
CVE-2023-51736 — Medium (CVSS 6.9): This vulnerability exist in Skyworth Router CM5100, version 4.1.1.24, due to insufficient validation of user supplied…

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