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CVE Record

CVE-2021-1150: Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Command Injection 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 inject arbitrary commands that are executed with root privileges. The vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to a targeted device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system. To exploit these vulnerabilities, an attacker would need to have valid administrator credentials on an affected device. Cisco has not released software updates that address these vulnerabilities.

HighCVSS 7.2Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Cisco small business routers can let a logged-in administrator run operating-system commands as root through the web management interface. This is serious because compromise of a router can affect traffic, availability, and network control. Cisco did not release software updates in the cited advisory.

Executive priority

Prioritize identification and containment. The issue needs admin credentials, but root execution on a perimeter or branch router creates meaningful business risk, and the cited Cisco advisory does not provide a software update.

Technical view

CVE-2021-1150 covers multiple command injection flaws in Cisco RV110W, RV130, RV130W, and RV215W web management interfaces. Improper validation of user input allows authenticated remote administrators to send crafted HTTP requests that execute arbitrary commands with root privileges.

Likely exposure

Exposure is limited to organizations still using the affected Cisco Small Business RV110W, RV130, RV130W, or RV215W routers, especially where the web management interface is reachable by untrusted networks or shared administrator accounts exist.

Exploitation context

Sources require valid administrator credentials. The bundle does not cite active exploitation, KEV listing, public exploit maturity, or unauthenticated access. Successful exploitation can provide root-level command execution on the router.

Researcher notes

Mapped to CWE-20 with CVSS 3.1 score 7.2: AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. Evidence does not provide affected firmware ranges, vulnerable parameters, proof-of-concept details, or a patch.

Mitigation direction

  • Check Cisco’s advisory for current vendor guidance.
  • Restrict web management access to trusted administrator networks only.
  • Remove internet exposure for affected management interfaces.
  • Audit administrator accounts and remove unused or shared credentials.
  • Plan isolation or replacement where no vendor fix is available.

Validation and detection

  • Inventory Cisco RV110W, RV130, RV130W, and RV215W devices.
  • Confirm whether web-based management is enabled and reachable.
  • Review administrator account lists for unnecessary access.
  • Check logs for unexpected administrator sessions or management requests.
  • Document compensating controls for every affected router.
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-20: 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-2021-1150 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
High
CVSS
7.2 (3.1)
Known Exploited
No
Published

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

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
7.2CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.2High
CVSS 3.1 vector shape for CVE-2021-1150Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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-20 · source CWE mapping

Improper Input Validation

Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.