Security readout for executives and security teams
Plain-English summary
CVE-2020-3145 lets an authenticated remote attacker run code on certain Cisco small-business router management interfaces. Successful compromise could give high-privilege control of the device, affecting confidentiality, integrity, and availability. Business urgency depends on whether these router admin interfaces are reachable and whether credentials could be abused.
Executive priority
Prioritize internet-exposed or broadly reachable management interfaces first. Treat confirmed affected devices as high-risk network edge assets, especially where administrative credentials are shared, weak, or not centrally controlled.
Technical view
The issue is improper validation of user-supplied data in the web-based management interface. Malicious HTTP requests from an authenticated remote attacker can lead to arbitrary code execution on the underlying operating system as a high-privilege user. CVSS 3.0 is 8.8 with network access, low complexity, and low privileges required.
Likely exposure
Exposure is most likely where Cisco RV110W, RV130, RV130W, or RV215W router management interfaces are reachable by untrusted networks or weakly controlled users. The source bundle lists RV130W firmware in affected data, while the description names multiple models; verify against Cisco’s advisory.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The weakness still matters because exploitation needs only authenticated access, no user interaction, and can result in high-privilege code execution on a network edge device.
Researcher notes
Evidence supports authenticated remote code execution through crafted HTTP requests to the management interface. Public source data does not include exploit proof, active exploitation, or complete fixed-version details. The affected-model scope should be reconciled with Cisco’s advisory before fleet-wide conclusions.
Mitigation direction
- Check Cisco’s advisory for affected releases, fixed firmware, and product-specific guidance.
- Restrict router management interfaces to trusted administrative networks only.
- Disable remote management exposure where it is not operationally required.
- Rotate and harden administrative credentials for affected router management portals.
- Replace or isolate devices if Cisco guidance indicates unsupported software.
Validation and detection
- Inventory Cisco RV110W, RV130, RV130W, and RV215W devices in all environments.
- Confirm firmware versions and support status against Cisco’s advisory.
- Verify whether web management is exposed to the internet or untrusted networks.
- Review administrative account access and recent management-interface authentication logs.
- Track remediation evidence without running exploit validation.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-119: 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 lookupExecution 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 lookupCVE-2020-3145 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20200715 Cisco RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote Command Execution Multiple VulnerabilitiesCVE 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 Restriction of Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.