dbcve.org
Rv110w FirmwareOperating system · Cisco

CVE-2021-1210

HIGH · 7.2 CVSS v3.1 Published 2021-01-13
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 or cause an affected device to restart unexpectedly. The vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a denial of service (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 input validation vulnerabilities in the web-based management interface of Cisco RV110W, RV130, RV130W, and RV215W routers allow authenticated attackers to execute arbitrary code as root or cause device reload via crafted HTTP requests. The vulnerabilities stem from improper validation of user-supplied input in the management interface.

MitigationSince Cisco has not released patches, organizations should restrict web management interface access to trusted networks only, enforce strong administrator credentials, monitor for suspicious HTTP activity, and consider replacing affected devices with supported models.

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
Affected:= 1.2.2.8= 1.3.1.7
Rv130 Vpn Router FirmwareOperating system
Affected:= 1.2.2.8= 1.3.1.7
Rv130w FirmwareOperating system
Affected:= 1.2.2.8= 1.3.1.7
Rv215w Wireless N Vpn Router FirmwareOperating system
Affected:= 1.2.2.8= 1.3.1.7
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
    Access the device web management interface or CLI and look for the model number displayed on the status or system information page. Alternatively, use the CLI command 'show version' to display the model name.
    Affected if The device is a Cisco RV110W, RV130, RV130W, or RV215W router, or the Cisco Application Extension Platform.
  2. Check the firmware version
    In the web interface, navigate to the Status or System Summary page to view the firmware version. From CLI, use the 'show version' command which displays the firmware build number.
    Affected if The firmware version is exactly 1.2.2.8 or 1.3.1.7 for RV110W, RV130, RV130W, or RV215W models. For the Application Extension Platform, the version is 1.0.3.55.
  3. Verify web-based management is enabled
    In the web interface, go to the Administration or Management settings and check if HTTP or HTTPS management access is enabled. From CLI, check the running configuration for 'ip http server' or 'ip http secure-server' commands.
    Affected if HTTP (port 80) or HTTPS (port 443) management interface is accessible and enabled on the device.
  4. Confirm administrative access method
    Review the device configuration to determine if remote web management is accessible from WAN interfaces or limited to LAN only. Check the access control lists or firewall rules governing HTTP/HTTPS traffic.
    Affected if The web management interface is exposed beyond the trusted local network, allowing authenticated attackers to send crafted HTTP requests.

You are affected if you are running an exact firmware version 1.2.2.8 or 1.3.1.7 on Cisco RV110W, RV130, RV130W, or RV215W routers (or version 1.0.3.55 on the Application Extension Platform) 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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Since Cisco has not released patches, organizations should restrict web management interface access to trusted networks only, enforce strong administrator credentials, monitor for suspicious HTTP activity, and consider replacing affected devices with supported models.

Fix this in Rv110w 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-2021-1210 in production — separate from our analysis above.

No notes yet

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What this is

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What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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