Rv110w FirmwareOperating system · Cisco
CVE-2018-0426
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA vulnerability in the web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, Cisco RV130W Wireless-N Multifunction VPN Router, and Cisco RV215W Wireless-N VPN Router could allow an unauthenticated, remote attacker to gain access to sensitive information. The vulnerability is due to improper validation of directory traversal character sequences within the web-based management interface. An attacker could exploit this vulnerability by sending malicious requests to the targeted device. A successful exploit could allow the attacker to gain access to arbitrary files on the affected device, resulting in the disclosure of sensitive information.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceA directory traversal vulnerability in the web-based management interface of Cisco RV110W, RV130W, and RV215W routers allows unauthenticated remote attackers to read arbitrary files on the device by sending malicious requests with directory traversal sequences (e.g., ../../). This results in sensitive information disclosure.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Rv110w FirmwareOperating system
<= 1.2.1.7
Rv130w FirmwareOperating system
< 1.0.3.44
Rv215w FirmwareOperating system
<= 1.3.0.8CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the router modelAccess the router's web interface or check the device label to confirm the model is RV110W, RV130W, or RV215WAffected if The device is not one of these three models, you are not affected by this specific CVE
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Check the firmware versionLog into the router's web management interface and navigate to Status or Administration > Firmware Upgrade to view the installed firmware version. Compare against: RV110W <= 1.2.1.7, RV130W < 1.0.3.44, RV215W <= 1.3.0.8Affected if Your firmware version is at or below the threshold for your specific model
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Verify web-based management is enabledIn the router's web interface, check Administration > Management or similar section to confirm the web-based HTTP/HTTPS management interface is enabledAffected if The web-based management interface is enabled and accessible (this is the attack surface required for exploitation)
You are affected if you have a Cisco RV110W, RV130W, or RV215W router with firmware at or below the affected version ranges AND the web-based management interface is enabled.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped1.0.3.44
Apply the Cisco firmware update for the affected devices. If unavailable, disable the web-based management interface from untrusted networks or block external access to the management port.
RV110W: 1.2.1.8+ | RV130W: 1.0.3.44+ | RV215W: 1.3.0.9+
- 1. Identify the exact Cisco RV router model (RV110W, RV130W, or RV215W) in your environment
- 2. Access the device's web-based management interface via HTTPS
- 3. Navigate to the Administration or Management section of the web UI
- 4. Locate the Firmware Upgrade or Router Upgrade option
- 5. Download the appropriate firmware version from Cisco's official support site: For RV110W use version 1.2.1.8 or later; for RV130W use version 1.0.3.44 or later; for RV215W use version 1.3.0.9 or later
- 6. Upload the firmware file through the web interface and allow the upgrade to complete
- 7. Wait for the device to reboot and verify the new firmware version is installed
- 8. After upgrade, verify the device is functioning normally and test that the web interface is accessible
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Rv110w Firmware
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-0426 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2018-0426 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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