dbcve.org
Rv110w FirmwareOperating system · Cisco

CVE-2021-1360

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 lack of vendor patches leaves no direct software remediation available.

MitigationReplace affected routers with supported models, or implement compensating controls such as restricting management interface access to trusted IP addresses via firewall rules, disabling remote web management if not required, and monitoring for indicators of compromise.

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
Rv130 FirmwareOperating system
Affected:= 1.2.2.8
Rv130w FirmwareOperating system
Affected:= 1.2.2.8
Rv215w FirmwareOperating system
Affected:= 1.2.2.8

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 router model
    Access the device web interface or check the physical label to confirm the model is Cisco RV110W, RV130, RV130W, or RV215W
    Affected if The device model is one of the four affected models listed in the CVE
  2. Check installed firmware version
    Log into the router web interface and navigate to Status or Administration > Firmware Upgrade to view the current firmware version, or use the CLI command 'show version' if accessible
    Affected if The firmware version is exactly 1.2.2.8
  3. Verify web-based management is enabled
    In the router web interface, go to Administration > Management and check if HTTP or HTTPS web access is enabled for LAN or WAN interfaces
    Affected if The web-based management interface is enabled and accessible (particularly if exposed to WAN)
  4. Review active management sessions
    Check the router web interface for active HTTP sessions or logged-in users under Administration > User Management or similar logs
    Affected if Unknown or unauthorized authenticated sessions are present
  5. Inspect HTTP traffic for suspicious requests
    Review firewall or router logs for anomalous HTTP GET/POST requests to the management interface, especially those containing unusual parameters or escape sequences
    Affected if Logs show malformed HTTP requests targeting the management interface from unexpected sources

You are affected if you have a Cisco RV110W, RV130, RV130W, or RV215W router running firmware version 1.2.2.8 with the web-based management interface enabled and exposed.

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

Replace affected routers with supported models, or implement compensating controls such as restricting management interface access to trusted IP addresses via firewall rules, disabling remote web management if not required, and monitoring for indicators of compromise.

Fix this in Rv110w Firmware Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA1.0 h
13.0 hours of engineering $2,310
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Scan for this in your stack

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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-2021-1360 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