How severe is CVE-2024-4739?

CVE-2024-4739 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2024-4739 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-4739?

CVE-2024-4739 affects Moxa Mxsecurity. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-4739?

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

Does CVE-2024-4739 have an EU (EUVD) identifier?

Yes. CVE-2024-4739 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-44336.

When was CVE-2024-4739 published?

CVE-2024-4739 was published on 2024-10-18 and last updated on 2026-06-17.

CVE-2024-4739

CVE-2024-4739 is a medium-severity vulnerability in Moxa Mxsecurity with a CVSS 3.x base score of 5.3. 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-749.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-44336
Weakness: CWE-749
Affected product: Moxa Mxsecurity
Published: 2024-10-18
Last modified: 2026-06-17

Description

The lack of access restriction to a resource from unauthorized users makes MXsecurity software versions v1.1.0 and prior vulnerable. By acquiring a valid authenticator, an attacker can pose as an authorized user and successfully access the resource.

Frequently asked questions

What is CVE-2024-4739?: The lack of access restriction to a resource from unauthorized users makes MXsecurity software versions v1.1.0 and prior vulnerable. By acquiring a valid authenticator, an attacker can pose as an authorized user and successfully access the resource.
How severe is CVE-2024-4739?: CVE-2024-4739 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2024-4739 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-4739?: CVE-2024-4739 affects Moxa Mxsecurity. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-4739?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-4739 have an EU (EUVD) identifier?: Yes. CVE-2024-4739 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-44336.
When was CVE-2024-4739 published?: CVE-2024-4739 was published on 2024-10-18 and last updated on 2026-06-17.

References

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-231878-mxsecurity-series-multiple-vulnerabilities

Affected products (1)

cpe:2.3:a:moxa:mxsecurity:*:*:*:*:*:*:*:*

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