CVE-2015-6480

HIGHNVD 8.38.3—

8.3

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.

CVSS v3: 8.3
EG Score: 8.3(medium)
EPSS: 59.3%
KEV: Not listed

Published

December 21, 2015

Last Modified

May 6, 2026

References (4)

ics-cert@hqhttp://zerodayinitiative.com/advisories/ZDI-15-452/
ics-cert@hqhttps://ics-cert.us-cert.gov/advisories/ICSA-15-328-01
af854a3a-2127-422b-91ae-364da2661108http://zerodayinitiative.com/advisories/ZDI-15-452/
af854a3a-2127-422b-91ae-364da2661108https://ics-cert.us-cert.gov/advisories/ICSA-15-328-01

Data Freshness Timeline

(refreshed 8× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-26 13:41 UTCEPSS rescore

Frequently asked(5)

What is CVE-2015-6480?

CVE-2015-6480 is a high vulnerability published on December 21, 2015. 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.

When was CVE-2015-6480 disclosed?

CVE-2015-6480 was first published in the National Vulnerability Database on December 21, 2015, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-6480 actively exploited?

CVE-2015-6480 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 59.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-6480?

CVE-2015-6480 has a CVSS v3 base score of 8.3 (NVD).

How do I remediate CVE-2015-6480?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-6480, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2015-6480

Explore →

Is Your Infrastructure Affected by CVE-2015-6480?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2015-6480

📅 Published

🔄 Last Modified

🔗 References (4)