CVE-2014-8361 — W300p Firmware
CRITICALCVE-2014-8361 is a critical-severity (CVSS 9.8) remote code execution vulnerability in aterm w300p firmware. It is in CISA's Known Exploited Vulnerabilities catalog (added 2023-09-18) — treat it as actively exploited and patch now. A fix is available — see the affected versions and patch details below.
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.
Exploitation Status
Actively exploited in the wild
- Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2023-09-18. Federal agencies were required to remediate by 2023-10-09.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2014-8361.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2014-8361 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).
Where this sits among everything scored
Of 395,249 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.
Description
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.
Affected Products
w300p firmwareatermw500p firmwareatermw1200ex firmwareatermw1200ex-ms firmwareatermwf300hp2 firmwareatermwf800hp firmwareatermResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Realtek SDK - Miniigd UPnP SOAP Command Execution (Metasploit)
by Metasploit · Jun 1, 2015
Detection & mitigation playbook
Vendor / applianceDetect
Inventory every aterm w300p firmware deployment and check each version against the affected-products list above.
Fix
Apply the aterm w300p firmware security patch or hotfix for CVE-2014-8361 on the affected version, following the vendor advisory for your exact build.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.
Frequently Asked Questions
Is CVE-2014-8361 being exploited in your environment?
Detect and block the exploit chain at execution, on systems you cannot patch yet.