CVE-2018-0665
No known exploitation. EPSS puts it in the 49th percentile. No fix published yet.
What to do
No fixed build or workaround is published yet. Limit exposure and watch for a patch.
What it is
From the CVE record
Yamaha routers RT57i Rev.8.00.95 and earlier, RT58i Rev.9.01.51 and earlier, NVR500 Rev.11.00.36 and earlier, RTX810 Rev.11.01.31 and earlier, allow an administrative user to embed arbitrary scripts to the configuration data through a certain form field of the configuration page, which may be executed on another administrative user's web browser. This is a different vulnerability from CVE-2018-0666.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.7% chance of exploitation activity in the next 30 days, which ranks it in the 49th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
3 events over 2143 days, from the signal feeds we watch.
- Record updated
- Publishedweakness classified
Affected products
- Yamaha Broadband VoIP Router RT57iNetworking Infrastructure / router-switch
- Yamaha Broadband VoIP Router RT58iNetworking Infrastructure / router-switch
- Yamaha Broadband VoIP Router NVR500Networking Infrastructure / router-switch
- Yamaha Gigabit VPN Router RTX810Networking Infrastructure / router-switch
- Yamaha Firewall FWX120Networking Infrastructure / router-switch
Technical detail
CVSS 3.0 vector
Open in the CVSS calculatorCVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Scored 6.8 by NVD.
How it is reached
- Attack Vector AdjacentRequires access to the local network (e.g. same Wi-Fi, Bluetooth)
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required HighRequires admin or elevated privileges
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
Sources
References in the record
- rtpro.yamaha.co.jp/RT/FAQ/Security/JVN69967692.html
- flets-w.com/solution/kiki_info/info/180829.html
- jvn.jp/en/jp/JVN69967692/index.html
And 1 more reference. See all after sign-in
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