Rv215w FirmwareOperating system · Cisco
CVE-2022-20878
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 · uneditedMultiple vulnerabilities in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device or cause the device to restart unexpectedly, resulting in a denial of service (DoS) condition. These vulnerabilities are due to insufficient validation of user fields within incoming HTTP packets. An attacker could exploit these vulnerabilities by sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to execute arbitrary commands on an affected device with root-level privileges or to cause the device to restart unexpectedly, resulting in a DoS condition. To exploit these vulnerabilities, an attacker would need to have valid Administrator credentials on the affected device. Cisco has not released software updates that address these vulnerabilities.
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 confidenceMultiple vulnerabilities in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers allow an authenticated attacker to execute arbitrary code with root privileges or cause device restart (DoS) via crafted HTTP requests with insufficiently validated user fields. No vendor patch is available.
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
Rv215w FirmwareOperating system
= 1.0.3.55
Rv130w FirmwareOperating system
= 1.0.3.55
Rv130 FirmwareOperating system
= 1.0.3.55
Rv110w FirmwareOperating system
= 1.0.3.55
Application Extension PlatformPlugin / extension
= 1.0.3.55CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/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 modelLog into the device web interface or check the physical device label to confirm the exact model number (RV110W, RV130, RV130W, or RV215W)Affected if The device is one of these four models: RV110W, RV130, RV130W, or RV215W
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Check the installed firmware versionIn the web-based management interface, navigate to Status > System Summary or Administration > Firmware Upgrade to view the current firmware version. Alternatively, check the banner or login page for version information.Affected if The firmware version is exactly 1.0.3.55 (only this specific version is listed as affected)
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Verify web-based management interface is enabledIn the router web interface, go to Firewall > General or Administration > Management to check if the HTTP/HTTPS management interface is enabled for LAN or WAN accessAffected if The web-based management interface is accessible (enabled) and reachable on the network
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Confirm authentication is configuredCheck under Administration > User Management or similar to verify that administrator accounts exist and authentication is required for web interface accessAffected if The device requires authentication for the web interface (the vulnerability requires an authenticated attacker)
The device is affected only if it is an RV110W, RV130, RV130W, or RV215W router running firmware version 1.0.3.55 with the web-based management interface enabled and accessible.
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 · scopedSince Cisco has not released updates, implement network segmentation to restrict management interface access to trusted networks only, enforce strong Administrator credentials, monitor for suspicious HTTP requests, and consider replacing end-of-life devices with supported hardware.
- Since Cisco has not released software updates to address these vulnerabilities, no direct fix is available.
- Implement network segmentation to restrict access to the router's web-based management interface to only trusted networks or management VLANs.
- If remote management is not required, disable HTTP/HTTPS access from the WAN interface via the router's firewall settings.
- Ensure Administrator accounts use strong, unique passwords to reduce the risk of credential compromise.
- Monitor network traffic for suspicious or malformed HTTP requests targeting the management interface.
- Consider replacing affected devices with newer models that receive active security support.
- Review Cisco Small Business RV series End-of-Life announcements for migration guidance to supported hardware.
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Rv215w Firmware
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-20878 — 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-2022-20878 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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- Version or environment caveats, and links to real fixes
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