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CVE Record

CVE-2022-20898: 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

Certain Cisco Small Business RV routers can be taken over or forced to restart through their web management interface, but only by someone with valid Administrator credentials. Cisco has not released software updates for these vulnerabilities, so organizations should focus on exposure reduction and vendor guidance.

Executive priority

Treat this as a moderate operational risk. It is not currently supported by evidence of active exploitation, but affected routers have no vendor software update in the provided sources. Prioritize exposure reduction and replacement planning for internet-reachable or business-critical devices.

Technical view

CVE-2022-20898 covers multiple flaws in the web-based management interface of Cisco RV110W, RV130, RV130W, and RV215W routers. Insufficient validation of user fields in HTTP packets can allow authenticated remote command execution with root privileges or denial of service by device restart.

Likely exposure

Exposure is likely where affected Cisco RV routers remain deployed and their web-based management interface is reachable by administrators or broader networks. Risk is higher if management access is internet-facing, reachable from untrusted segments, or protected by weak or shared Administrator credentials.

Exploitation context

The provided sources do not report active exploitation, and the CVE is not listed as KEV. Exploitation requires valid Administrator credentials and access to the web management interface. Successful exploitation can affect confidentiality, integrity, and availability, but privileges required are high.

Researcher notes

The CVE maps to CWE-120 and CVSS 3.1 score 4.7 with AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L. The advisory describes grouped vulnerabilities and does not provide a patch path in the supplied evidence.

Mitigation direction

  • Review the Cisco advisory for current vendor guidance.
  • Restrict router web management access to trusted administrative networks only.
  • Disable any unnecessary remote management exposure.
  • Rotate and harden Administrator credentials on affected devices.
  • Evaluate replacement options if no fixed software is available.

Validation and detection

  • Inventory Cisco RV110W, RV130, RV130W, and RV215W routers.
  • Confirm whether web-based management is reachable from untrusted networks.
  • Verify Administrator account ownership, strength, and recent changes.
  • Review logs for unexpected restarts or suspicious administrator activity.
  • Document compensating controls where affected devices remain deployed.
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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

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-2022-20898 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-2022-20898Attack 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.