LiveActive security incident?Get immediate response
CVE Record

CVE-2022-20878: 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 flaw affects Cisco Small Business RV110W, RV130, RV130W, and RV215W routers. An attacker who already has Administrator credentials could abuse the web management interface to run root-level commands or force a restart. Cisco did not release software updates for this issue in the supplied advisory.

Executive priority

Treat as a moderate infrastructure risk. It is not shown as actively exploited and requires admin credentials, but successful abuse can give root-level control or disrupt connectivity. Prioritize devices with exposed management interfaces or weak shared administrator access.

Technical view

CVE-2022-20878 is an authenticated remote command execution and denial-of-service issue in affected Cisco Small Business RV routers. The cause is insufficient validation of user fields in incoming HTTP packets to the web-based management interface. Exploitation requires valid Administrator credentials and may result in root-level command execution or unexpected device restart.

Likely exposure

Exposure is most relevant where affected RV110W, RV130, RV130W, or RV215W routers remain deployed and their web management interface is reachable by administrators or broader networks. Risk is lower than unauthenticated RCE because valid Administrator credentials are required, but impact is meaningful on compromised admin accounts.

Exploitation context

The supplied sources do not show CISA KEV listing or active exploitation. Exploitation requires authenticated Administrator access and a crafted request to the web-based management interface. No public exploit status is established from the provided bundle.

Researcher notes

Evidence is limited to the CVE record and Cisco advisory metadata in the bundle. The CVSS score is 4.7 with PR:H, AV:N, AC:L, UI:N, and low confidentiality, integrity, and availability impact. Cisco is cited as not releasing software updates for these vulnerabilities.

Mitigation direction

  • Check Cisco advisory for current vendor guidance and product status.
  • Plan replacement or isolation where affected routers remain in use.
  • Restrict management interface access to trusted administrative networks only.
  • Review and harden Administrator credentials for affected devices.
  • Monitor for unexpected router restarts or suspicious admin activity.

Validation and detection

  • Inventory sites for RV110W, RV130, RV130W, and RV215W routers.
  • Confirm whether web-based management is reachable from untrusted networks.
  • Review configured Administrator accounts and recent credential changes.
  • Check device logs for unexpected restarts or management activity.
  • Document compensating controls because no Cisco software update is listed.
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

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2022-20878 mapping review

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

Open ATT&CK lookup
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-2022-20878Attack 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.