How severe is CVE-2015-6480?

CVE-2015-6480 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2015-6480 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6480?

CVE-2015-6480 affects Moxa Oncell Central Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-6480?

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.

When was CVE-2015-6480 published?

CVE-2015-6480 was published on 2015-12-21 and last updated on 2026-06-17.

CVE-2015-6480

CVE-2015-6480 is a high-severity vulnerability in Moxa Oncell Central Manager with a CVSS 3.x base score of 8.3. 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-287.

Key facts

Severity: High (CVSS 3.x base score 8.3)
CVSS v2: 7.5
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Moxa Oncell Central Manager
Published: 2015-12-21
Last modified: 2026-06-17

Description

The MessageBrokerServlet servlet in Moxa OnCell Central Manager before 2.2 does not require authentication, which allows remote attackers to obtain administrative access via a command, as demonstrated by the addUserAndGroup action.

Frequently asked questions

What is CVE-2015-6480?: The MessageBrokerServlet servlet in Moxa OnCell Central Manager before 2.2 does not require authentication, which allows remote attackers to obtain administrative access via a command, as demonstrated by the addUserAndGroup action.
How severe is CVE-2015-6480?: CVE-2015-6480 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2015-6480 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6480?: CVE-2015-6480 affects Moxa Oncell Central Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-6480?: 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.
When was CVE-2015-6480 published?: CVE-2015-6480 was published on 2015-12-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:moxa:oncell_central_manager:*:*:*:*:*:*:*:*

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CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

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