Security readout for executives and security teams
Plain-English summary
This flaw lets an administrator-level remote user abuse the router web management interface to run operating-system commands as root. Business risk is highest where affected Cisco Small Business RV routers are still deployed and management access is exposed beyond tightly controlled admin paths.
Executive priority
Treat this as a high-priority infrastructure exposure where affected routers remain deployed. The privilege requirement reduces broad internet-scale risk, but root command execution on edge networking equipment can affect confidentiality, integrity, and availability.
Technical view
CVE-2020-3275 is command injection in scripts behind the web-based management interface. Cisco attributes it to insufficient validation of user-supplied input. Exploitation requires administrative privileges sufficient to log in remotely, but successful exploitation gives root-level command execution on the router.
Likely exposure
Exposure is limited to Cisco Small Business RV320, RV325, RV016, RV042, and RV082 routers using affected firmware. The source bundle does not provide exact affected firmware versions, so teams should verify deployed firmware against Cisco’s advisory.
Exploitation context
The provided sources do not show active exploitation, and the bundle marks KEV as false. Exploitation is still serious because a compromised or misused admin account could turn router management access into root command execution.
Researcher notes
Key constraints are PR:H, AV:N, UI:N, and root impact after successful authenticated exploitation. The bundle does not include exact firmware ranges, fixed versions, or exploit-in-the-wild evidence; avoid asserting those without Cisco advisory confirmation.
Mitigation direction
- Check Cisco’s advisory for affected firmware and fixed-release guidance.
- Identify and prioritize any listed RV routers still in production.
- Restrict web management access to trusted administrative networks only.
- Review administrative account access and remove unnecessary privileges.
- Replace unsupported or unpatchable affected routers where vendor fixes are unavailable.
Validation and detection
- Inventory Cisco RV320, RV325, RV016, RV042, and RV082 devices.
- Record firmware versions and compare them with Cisco advisory guidance.
- Confirm web management is not exposed to untrusted networks.
- Review admin accounts for unexpected users or stale credentials.
- Check router logs for unusual administrative web-management activity.
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-77: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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-2020-3275 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
- 7.2 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:H/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:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.2HighVector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20200617 Cisco Small Business RV Series Routers Command Injection 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 Neutralization of Special Elements used in a Command ('Command Injection')
Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.