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CVE Record

CVE-2022-20875: 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

Cisco reports authenticated remote flaws in several Small Business RV routers that could let an administrator-level attacker run commands as root or reboot the device. Cisco has not released software updates for these vulnerabilities. Business urgency is driven by whether these routers remain deployed and how reachable their web management interfaces are.

Executive priority

Treat this as a moderate-priority infrastructure hygiene issue unless affected routers manage sensitive sites or are remotely reachable. The absence of a vendor software fix makes inventory, access restriction, credential control, and replacement planning more important than routine patch scheduling.

Technical view

The issue affects the web-based management interface of Cisco RV110W, RV130, RV130W, and RV215W routers. Insufficient validation of user fields in incoming HTTP packets can allow arbitrary command execution with root privileges or denial of service. Exploitation requires valid Administrator credentials. Cisco lists no software update addressing the issue.

Likely exposure

Exposure is likely limited to organizations still operating the named Cisco Small Business RV models. Risk increases if the web management interface is reachable from remote or untrusted networks, or if Administrator credentials are shared, weak, or compromised. The source bundle does not provide internet-exposure prevalence.

Exploitation context

The provided sources do not show active exploitation and the CVE is not listed as KEV in the bundle. Exploitation requires authenticated Administrator access to the web management interface and a crafted HTTP request. That privilege requirement lowers broad internet-scale risk but still matters for compromised admin accounts or exposed management paths.

Researcher notes

The source bundle identifies 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. Impact includes root-level command execution or DoS through the web management interface. Evidence is insufficient to claim public exploitation, proof-of-concept availability, or a software fix.

Mitigation direction

  • Check Cisco's advisory for current vendor guidance and product status.
  • Inventory and prioritize replacement planning for affected RV110W, RV130, RV130W, and RV215W routers.
  • Limit access to the web management interface to trusted administrative networks.
  • Review Administrator credential hygiene and remove unused admin accounts.
  • Monitor affected routers for unexpected restarts or management-interface activity.

Validation and detection

  • Confirm whether any named Cisco RV router models remain deployed.
  • Verify whether web-based management is enabled and remotely reachable.
  • Review admin account inventory and recent authentication activity.
  • Check change logs or monitoring for unexpected router reboots.
  • Document compensating controls where no vendor patch exists.
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-2022-20875 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-2022-20875Attack 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.