dbcve.org
Rv215w FirmwareOperating system · Cisco

CVE-2022-20883

HIGH · 7.2 CVSS v3.1 Published 2022-07-21
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
78/100
Remediation priority · High
Remotely reachable Zero-click

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 · unedited
Multiple 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 confidence

Multiple command injection vulnerabilities in the web-based management interface of Cisco Small Business RV series routers allow authenticated administrators to execute arbitrary commands with root privileges via insufficiently validated HTTP request fields. The same vulnerabilities can cause device crashes resulting in DoS.

MitigationSince Cisco has not released patches (EOL products), restrict management interface access to trusted networks only, enforce strong administrator credentials, and replace affected devices with supported hardware.

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
Affected:= 1.0.3.55
Rv130w FirmwareOperating system
Affected:= 1.0.3.55
Rv130 FirmwareOperating system
Affected:= 1.0.3.55
Rv110w FirmwareOperating system
Affected:= 1.0.3.55
Application Extension PlatformPlugin / extension
Affected:= 1.0.3.55

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the router model
    Log into the device via console or SSH and run 'show version' or 'uname -a' to determine the exact model (RV110W, RV130, RV130W, RV215W, or Cisco Application Extension Platform)
    Affected if The device is any of these five models and the firmware version is 1.0.3.55
  2. Check the installed firmware version
    In the web-based management interface, navigate to Status > System Summary or run 'show version' via CLI to locate the firmware version field
    Affected if The firmware version is exactly 1.0.3.55 (no other versions are listed as affected)
  3. Confirm web-based management interface is enabled
    In the web interface, go to Administration > Management > HTTP/HTTPS or check via CLI with 'show running-config | include http' to see if the management interface is active
    Affected if The HTTP or HTTPS management interface is enabled and accessible
  4. Verify management interface exposure
    Check the management access settings to determine if the web interface is reachable from WAN/outside networks or only from LAN
    Affected if The management interface is exposed to untrusted networks (not restricted to trusted internal IPs only)

You are affected if your device is an RV110W, RV130, RV130W, RV215W, or Cisco Application Extension Platform running firmware version 1.0.3.55 and the web-based management interface is enabled and accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Since Cisco has not released patches (EOL products), restrict management interface access to trusted networks only, enforce strong administrator credentials, and replace affected devices with supported hardware.

Recommended fix High confidence
  1. No remediation steps available. Cisco has not released software updates that address these vulnerabilities.
  2. Monitor Cisco security advisories for future updates on the Cisco Small Business RV110W, RV130, RV130W, and RV215W Router vulnerabilities.
  3. If possible, restrict access to the web-based management interface to trusted networks or use VPN access to limit exposure to authenticated attackers.

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Rv215w Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
36.0 hours of engineering $6,400
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-20883 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data