How severe is CVE-2023-51743?

CVE-2023-51743 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-51743 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51743?

CVE-2023-51743 affects Skyworthdigital Cm5100 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-51743?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-51743 have an EU (EUVD) identifier?

Yes. CVE-2023-51743 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56440.

When was CVE-2023-51743 published?

CVE-2023-51743 was published on 2024-01-17 and last updated on 2026-06-17.

CVE-2023-51743

CVE-2023-51743 is a medium-severity vulnerability in Skyworthdigital Cm5100 Firmware with a CVSS 3.x base score of 6.5. 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-56440
Weakness: CWE-787
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 insufficient validation of user supplied input for the Set Upstream Channel ID (UCID) parameter at its web interface. A remote attacker could exploit this vulnerability by supplying specially crafted input to the parameter at the web interface of the vulnerable targeted system. Successful exploitation of this vulnerability could allow the attacker to perform a Denial of Service (DoS) attack on the targeted system.

Frequently asked questions

What is CVE-2023-51743?: This vulnerability exist in Skyworth Router CM5100, version 4.1.1.24, due to insufficient validation of user supplied input for the Set Upstream Channel ID (UCID) parameter at its web interface. A remote attacker could exploit this vulnerability by supplying specially crafted input to the parameter at the web interface of the vulnerable targeted system. Successful exploitation of this vulnerability could allow the attacker to perform a Denial of Service (DoS) attack on the targeted system.
How severe is CVE-2023-51743?: CVE-2023-51743 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-51743 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51743?: CVE-2023-51743 affects Skyworthdigital Cm5100 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-51743?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-51743 have an EU (EUVD) identifier?: Yes. CVE-2023-51743 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56440.
When was CVE-2023-51743 published?: CVE-2023-51743 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-2023-51740 — 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…

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