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CVE-2016-8363

Critical Vulnerability: CVE-2016-8363 — moxa — oncellg3470a-lte_firmware, oncellg3470a-lte

An issue was discovered in Moxa OnCell OnCellG3470A-LTE, AWK-1131A/3131A/4131A Series, AWK-3191 Series, AWK-5232/6232 Series, AWK-1121/1127 Series, WAC-1001 V2 Series, WAC-2004 Series, AWK-3121-M12-RTG Series, AWK-3131-M12-RCC Series, AWK-5232-M12-RCC Series, TAP-6226 Series, AWK-3121/4121 Series, AWK-3131/4131 Series, and AWK-5222/6222 Series. User is able to execute arbitrary OS commands on the server.

Wednesday, May 13, 2026moxaVulnios Threat Intelligence
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Vulnerability Snapshot

CVE-2016-8363 is rated CRITICAL — exploitation is trivial or already observed in the wild and impact is severe. Patch immediately, not on the next maintenance window.

Affected technology: oncellg3470a-lte_firmware, oncellg3470a-lte, awk-4131a_firmware, awk-4131a, awk-3191_firmware, plus 5 other product variants.

Executive Summary

An issue was discovered in Moxa OnCell OnCellG3470A-LTE, AWK-1131A/3131A/4131A Series, AWK-3191 Series, AWK-5232/6232 Series, AWK-1121/1127 Series, WAC-1001 V2 Series, WAC-2004 Series, AWK-3121-M12-RTG Series, AWK-3131-M12-RCC Series, AWK-5232-M12-RCC Series, TAP-6226 Series, AWK-3121/4121 Series, AWK-3131/4131 Series, and AWK-5222/6222 Series. User is able to execute arbitrary OS commands on the server.

Why It Matters

CVE-2016-8363 is rated CRITICAL severity, requiring immediate attention from security teams.

CVSS Base Score: 10/10

Affected Technologies

Vendors: moxa

Products: oncellg3470a-lte_firmware, oncellg3470a-lte, awk-4131a_firmware, awk-4131a, awk-3191_firmware, awk-3191, awk-5232_firmware, awk-5232, awk-6232_firmware, awk-6232, awk-1121_firmware, awk-1121, awk-1127_firmware, awk-1127, wac-1001_v2_firmware, wac-1001_v2, wac-2004_firmware, wac-2004, awk-3121-m12-rtg_firmware, awk-3121-m12-rtg, awk-3131-m12-rcc_firmware, awk-3131-m12-rcc, awk-5232-m12-rcc_firmware, awk-5232-m12-rcc, awk-3131a_firmware, awk-3131a, awk-1131a_firmware, awk-1131a

🛡️What Defenders Should Check

  • Check if you are affected — Review your asset inventory for products listed in CVE-2016-8363.
  • Apply available patches — Visit vendor advisories for the latest security updates.
  • Monitor for exploitation — Check your SIEM/IDS logs for related indicators.

    • Use Vulnios to continuously monitor your exposure to CVE-2016-8363 and similar vulnerabilities.

    References & Sources

  • http://www.securityfocus.com/bid/94092
  • https://ics-cert.us-cert.gov/advisories/ICSA-16-308-01
  • http://www.securityfocus.com/bid/94092
  • https://ics-cert.us-cert.gov/advisories/ICSA-16-308-01

    • How Vulnios Detects This

    Vulnios scans for this vulnerability using Trivy and Grype for SBOM-based CVE matching and Vulnios CVE feed continuous monitoring against your asset inventory. Run a scan against your environment to see whether you are exposed; findings are linked back to the original CVE record so triage starts with the patch path already known.

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    Affected Products

    oncellg3470a-lte_firmwareoncellg3470a-lteawk-4131a_firmwareawk-4131aawk-3191_firmwareawk-3191awk-5232_firmwareawk-5232awk-6232_firmwareawk-6232

    Sources

    Related Threat Alerts

    Frequently Asked Questions

    What is CVE-2016-8363?

    CVE-2016-8363 is a critical-severity vulnerability tracked under the Common Vulnerabilities and Exposures program. An issue was discovered in Moxa OnCell OnCellG3470A-LTE, AWK-1131A/3131A/4131A Series, AWK-3191 Series, AWK-5232/6232 Series, AWK-1121/1127 Series, WAC-1001 V2 Series, WAC-2004 Series, AWK-3121-M12-RT

    Am I affected?

    Check whether your environment runs oncellg3470a-lte_firmware, oncellg3470a-lte, awk-4131a_firmware, awk-4131a, awk-3191_firmware. If you operate any of those, treat yourself as in scope until you have evidence otherwise. A Vulnios scan will identify the exact assets carrying the affected version.

    How urgent is the response?

    Critical: do not wait for your normal patch cycle. Verify exposure today, apply the vendor patch immediately, and add detection rules for any post-exploit indicators.

    How do I remediate?

    Apply the vendor patch listed in the upstream advisory linked under Sources. If the patch is not yet available, follow the vendor-supplied workaround (often a config flag or feature disable) and add detections for the published exploit pattern in your SIEM. Re-scan after the patch lands to confirm the finding clears.

    Where can I track exploitation activity?

    Watch CISA's Known Exploited Vulnerabilities catalog for CVE-2016-8363. Cross-reference with public exploit databases and your own SIEM/IDS for indicator-of-compromise patterns. Vulnios tracks KEV status automatically and surfaces it on the asset findings view.

    How does Vulnios help with this?

    Vulnios continuously cross-references your asset inventory against the live CVE feed (NVD, vendor advisories, CISA KEV, and curated OSINT). When a new CVE matches your environment, you get a prioritized finding with the severity, KEV status, exploit-prediction (EPSS), and a direct path to the vendor patch. You can start a free scan from the homepage.

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