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.
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-20: 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-2021-1150 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 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20210113 Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface 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 Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
