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CVE Record

CVE-2022-20884: Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Remote Command Execution and Denial of Service Vulnerabilities

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.

MediumCVSS 4.7Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This affects Cisco Small Business RV110W, RV130, RV130W, and RV215W routers. An attacker who already has valid administrator credentials could abuse the web management interface to run commands as root or crash the device. Cisco says no software updates were released, so exposure should be handled through access reduction, credential control, and replacement planning.

Executive priority

Treat this as a targeted operational risk, not a broad unauthenticated internet worm scenario. The lack of Cisco software fixes makes lifecycle action important for any remaining affected routers.

Technical view

The issue is in insufficient validation of user fields in HTTP packets sent to the web-based management interface. Successful exploitation can lead to root-level command execution or denial of service. CVSS 3.1 is 4.7 with network attack vector, low complexity, high privileges required, no user interaction, and limited CIA impact.

Likely exposure

Exposure is limited to organizations still running the named Cisco Small Business RV routers, especially where the management interface is reachable by untrusted networks or shared administrator credentials exist.

Exploitation context

The source bundle does not show active exploitation and KEV is false. Exploitation requires valid Administrator credentials, but successful abuse can provide root-level device control or force unexpected restarts.

Researcher notes

Evidence supports authenticated remote command execution and DoS through management-interface input validation flaws. Version granularity is not provided in the bundle. Do not assume unauthenticated exploitation or a vendor patch from the cited sources.

Mitigation direction

  • Identify and prioritize replacement of affected RV110W, RV130, RV130W, and RV215W routers.
  • Restrict web management access to trusted administrative networks or VPN paths only.
  • Audit and rotate router Administrator credentials where these devices remain in service.
  • Check Cisco advisory guidance before making operational changes.
  • Monitor affected devices for unexpected restarts and suspicious administrator activity.

Validation and detection

  • Inventory edge devices for the affected Cisco Small Business RV models.
  • Confirm whether the web-based management interface is reachable from untrusted networks.
  • Review who has Administrator credentials on each affected router.
  • Check device logs for unexpected restarts or unusual administrative sessions.
  • Document exceptions where replacement or isolation is not immediately possible.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-120: Exact CWE lookup

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2022-20884 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.7 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.7CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L1.23.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.7Medium
CVSS 3.1 vector shape for CVE-2022-20884Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
CiscoCisco Small Business RV Series Router Firmwaren/aListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-120 · source CWE mapping

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.