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CVE Record

CVE-2022-20883: 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 issue affects specific Cisco Small Business routers. Someone with valid administrator credentials could abuse the router’s web management interface to run commands as root or force a reboot. Cisco’s advisory states no software updates were released, so organizations should treat remaining deployments as operational risk.

Executive priority

Prioritize replacement or isolation if these routers protect important networks or expose management remotely. The CVSS score is medium because administrator credentials are required, but successful abuse gives root-level control or causes outages, and Cisco did not provide a patch in the supplied advisory.

Technical view

CVE-2022-20883 is caused by insufficient validation of user fields in HTTP packets sent to the web-based management interface. An authenticated remote attacker with Administrator privileges can submit a crafted request that enables root-level command execution or denial of service. CVSS v3.1 score is 4.7 with high privileges required.

Likely exposure

Exposure is limited to Cisco Small Business RV110W, RV130, RV130W, and RV215W routers using the affected firmware. The attacker must have valid Administrator credentials and reach the web-based management interface. Publicly reachable management interfaces increase practical risk, but unauthenticated exploitation is not supported by the supplied sources.

Exploitation context

The supplied sources do not show CISA KEV listing or active exploitation. Exploitation requires authenticated administrator access, but the outcome is serious once credentials are available: root command execution or device restart. Cisco states it has not released software updates addressing these vulnerabilities.

Researcher notes

Evidence is strongest for affected models, attack preconditions, impact, and lack of Cisco software updates. The source bundle does not provide firmware version ranges, exploit availability, indicators of compromise, or a named vendor mitigation beyond the advisory. Avoid claiming active exploitation without additional evidence.

Mitigation direction

  • Check Cisco’s advisory for any current guidance before deciding remediation.
  • Identify and replace affected router models where business-critical exposure remains.
  • Limit web management access to trusted administrative networks only.
  • Review and reduce Administrator accounts on affected devices.
  • Monitor for unexpected router restarts or configuration changes.

Validation and detection

  • Inventory Cisco RV110W, RV130, RV130W, and RV215W routers.
  • Confirm whether the web-based management interface is remotely reachable.
  • Verify all Administrator accounts are known, current, and required.
  • Check logs for unexplained administrative activity or device restarts.
  • Document that Cisco reported no software update for this CVE.
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-2022-20883 mapping review

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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-2022-20883Attack 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.