Security readout for executives and security teams
Plain-English summary
This affects Cisco Small Business RV110W, RV130, RV130W, and RV215W routers. An attacker with valid administrator credentials could abuse the web management interface to run code as root or crash the device. Cisco’s advisory says no software updates were released for these vulnerabilities.
Executive priority
Treat this as a high-priority network edge risk if affected routers remain deployed. The need for administrator credentials lowers likelihood, but root code execution and denial of service on network equipment create meaningful operational impact, especially with exposed management interfaces.
Technical view
The issue is in the routers’ web-based management interface, caused by improper validation of user-supplied input. Crafted HTTP requests from an authenticated remote administrator could trigger arbitrary code execution with root privileges or cause device reload and denial of service. CVSS 3.1 is 7.2, high severity.
Likely exposure
Organizations still operating RV110W, RV130, RV130W, or RV215W routers are potentially exposed when the management interface is reachable by someone with administrator credentials. The provided sources do not identify specific affected firmware versions beyond the named product family.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires valid administrator credentials, but successful exploitation could provide root-level control or disrupt network availability through device reload.
Researcher notes
Do not assume unauthenticated exploitation from the cited data. Key constraints are authenticated administrator access, web management interface reachability, and absence of listed Cisco software updates. The provided record maps to CWE-121, but the description emphasizes improper input validation.
Mitigation direction
- Review Cisco’s advisory and current vendor guidance before making production changes.
- Limit web management access to trusted administrative networks only.
- Audit and rotate router administrator credentials.
- Disable unnecessary remote management exposure where operationally feasible.
- Plan replacement or risk acceptance if no supported fix is available.
Validation and detection
- Inventory RV110W, RV130, RV130W, and RV215W routers in the environment.
- Confirm whether web management is reachable from untrusted networks.
- Review administrator accounts for shared, stale, or excessive access.
- Check device logs for unexpected management activity or reloads.
- Compare device status against Cisco’s advisory and lifecycle guidance.
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-121: 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-2021-1184 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 Remote Command Execution and Denial of Service 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.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
