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Actively exploited

CVE-2014-8361 Realtek SDK Improper Input Validation Vulnerability

Realtek SDK contains an improper input validation vulnerability in the miniigd SOAP service that allows remote attackers to execute malicious code via a crafted NewInternalClient request.

From the CISA KEV catalogue version 2026.11.06, with Cybergen analysis. Updated 6 Nov 2026.

Our Assessment

Should You Worry?

Patch nowCybergen assessment
  • CISA confirmed exploitation in the wild and added it to the Known Exploited Vulnerabilities catalogue on 18 Sep 2023.
  • Rated Critical severity (CVSS 9.8, scored by CISA).
  • It has been in the catalogue for 1,145 days. Systems still unpatched now have almost certainly been scanned for it.
The Vulnerability

What It Is

The miniigd SOAP service in Realtek SDK allows remote attackers to execute arbitrary code via a crafted NewInternalClient request, as exploited in the wild through 2023.

From Watch to Action

What To Do Now

  1. 1

    Find it

    Search your asset inventory and external attack surface for Realtek SDK. Include cloud images, appliances and anything a supplier runs for you.

    Attack Surface Management
  2. 2

    Fix it

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

    Vulnerability Management
  3. 3

    Hunt for compromise

    If an affected system was reachable before you patched, assume it may have been hit. Check logs, new accounts, web shells and outbound connections from the date of exposure.

    Incident Response
  4. 4

    Prove it is fixed

    Rescan or test the system after patching. Upgrades that fail silently and forgotten secondary instances are common.

    Penetration Testing

Vendor Advisories

Regulation

The Compliance Clock

Cyber EssentialsRated critical, so if it affects devices in your Cyber Essentials scope, the update must be installed within 14 days of the vendor releasing it.NIS2If exploitation causes a significant incident, essential and important entities owe their CSIRT an early warning within 24 hours and a notification within 72 hours.DORAFinancial entities must classify ICT incidents and send an initial notification for a major incident within strict deadlines, with exploited flaws a common cause.US federal (BOD 22-01)Federal civilian agencies had until 9 Oct 2023 to remediate. A sensible benchmark for everyone else.

General guidance, not legal advice. Your obligations depend on your sector, scope and jurisdiction.

Stay Ahead

More Exploited Realtek Flaws

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CVE-2021-35394Realtek Jungle SDK Remote Code Execution VulnerabilityAdded 10 Dec 2021CVE-2021-35395Realtek AP-Router SDK Buffer Overflow VulnerabilityAdded 3 Nov 2021

All 3 exploited Realtek vulnerabilities

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Evidence

Sources

  1. CISA Known Exploited Vulnerabilities catalogue
  2. NVD: CVE-2014-8361
  3. CVE record: CVE-2014-8361
  4. FIRST EPSS
  5. web.archive.org/web/20150831100501/http://securityadvisories.dlink.com/security/publication.aspx?nam
  6. zerodayinitiative.com/advisories/ZDI-15-155/
  7. securityadvisories.dlink.com/security/publication.aspx?name=SAP10055
  8. packetstormsecurity.com/files/132090/Realtek-SDK-Miniigd-UPnP-SOAP-Command-Execution.html
  9. securityfocus.com/bid/74330
  10. exploit-db.com/exploits/37169/
  11. jvn.jp/en/jp/JVN47580234/index.html
  12. jvn.jp/en/jp/JVN67456944/index.html