Security readout for executives and security teams
Plain-English summary
Some Cisco Small Business RV110W and RV215W routers may expose sensitive device information, including configuration data, through their web management interface. The attacker does not need credentials, but exploitation depends on a prior valid user action since the last reboot. The main business risk is disclosure of network configuration and secrets.
Executive priority
Prioritize remediation for any affected router with externally reachable management. The issue is not rated critical and has no provided active-exploitation evidence, but configuration disclosure can enable broader compromise of network infrastructure.
Technical view
CVE-2020-3150 is an improper authorization issue in the web-based management interface. A remote unauthenticated attacker could access restricted sensitive information after a valid user opened a specific file on the device since reboot. CVSS 3.0 is 5.9, with high confidentiality impact and no stated integrity or availability impact.
Likely exposure
Exposure is most relevant where affected Cisco Small Business RV110W or RV215W router management interfaces are reachable from untrusted networks. Devices limited to trusted administration networks have lower practical exposure, but still require review because the flaw is unauthenticated once its condition is met.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation is constrained by a required prior valid-user action since reboot, which raises complexity, but the attacker can be remote and unauthenticated if the management interface is reachable.
Researcher notes
Key constraints are unauthenticated remote access, improper authorization, and a prerequisite valid-user file-open condition since reboot. Do not assume exploitability without management-interface reachability and the prerequisite state. The provided sources do not name a specific patch version or active exploitation.
Mitigation direction
- Review Cisco’s advisory for affected releases and vendor remediation guidance.
- Restrict router web management access to trusted administration networks only.
- Remove internet exposure from affected management interfaces where present.
- Rotate sensitive configuration secrets if exposure is suspected.
- Replace unsupported affected devices if no vendor-supported fix is available.
Validation and detection
- Inventory Cisco Small Business RV110W and RV215W routers in use.
- Confirm whether web management is reachable from untrusted networks.
- Check firmware and model status against Cisco’s advisory.
- Review logs for unusual management-interface access where available.
- Assess whether exposed configurations contained reusable secrets.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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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Open ATT&CK lookupCVE-2020-3150 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.9 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N2.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.9MediumVector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20200715 Cisco Small Business RV110W and RV215W Series Routers Information Disclosure VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Authorization
Improper Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.