Rv215w FirmwareOperating system · Cisco
CVE-2022-20902
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 command injection and DoS vulnerabilities exist in the web-based management interface of Cisco RV110W, RV130, RV130W, and RV215W routers. Attackers with valid Administrator credentials can send specially crafted HTTP requests with insufficiently validated user fields, enabling arbitrary command execution with root privileges or causing device crashes. No vendor software updates are 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
= 1.3.1.7
Rv130w FirmwareOperating system
= 1.3.1.7
Rv130 FirmwareOperating system
= 1.3.1.7
Rv110w FirmwareOperating system
= 1.3.1.7CVSS 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 router modelAccess the web-based management interface and check the device status page, or look at the physical device label. Confirm the model is RV110W, RV130, RV130W, or RV215W.Affected if Model is one of RV110W, RV130, RV130W, or RV215W.
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Check firmware versionIn the web interface, navigate to Administration > Firmware Upgrade or Status > Device Info to view the current firmware version. Compare against 1.3.1.7.Affected if Firmware version is exactly 1.3.1.7.
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Verify web management is enabledIn the web interface, go to Administration > Management and check if HTTP/HTTPS management is enabled. Also check if remote management is allowed.Affected if Web-based management interface is enabled, especially if accessible from WAN.
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Confirm Administrator access possibilityCheck if default credentials are in use or if there are any indications the admin interface may be accessible to untrusted users. Review any ACLs or access restrictions configured.Affected if Web management is exposed or default credentials may be in use.
You are affected if you are running firmware version 1.3.1.7 on an RV110W, RV130, RV130W, or RV215W router with the web-based management interface 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 · scopedSince Cisco has not released patches, implement compensating controls such as restricting web management interface access to trusted IP addresses via ACLs, disabling remote management on WAN interfaces, or replacing affected devices with supported models.
- This vulnerability has no available fix from Cisco. Cisco has not released software updates that address these vulnerabilities.
- Implement network segmentation to restrict access to the router's web management interface to only trusted networks or management stations
- If remote management is not required, disable the web-based management interface accessible from the WAN/internet
- Use strong, unique administrator credentials and change them regularly
- Monitor Cisco security advisories for any future updates or End-of-Life announcements for these products
- Consider migrating to a supported router model as these older RV series routers have reached end-of-life and will not receive security patches
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Rv215w Firmware
Scoped from the published advisory
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,680.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-20902 — 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-2022-20902 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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