Security readout for executives and security teams
Plain-English summary
This flaw can let an unauthenticated remote attacker take full control of affected Cisco Small Business RV160 and RV260 series VPN routers. Because successful code execution runs as root, compromise could expose traffic, credentials, routing, and business connectivity.
Executive priority
Treat this as urgent for any exposed affected router. A successful compromise gives root-level control of a network edge device, making business disruption and deeper network compromise credible risks.
Technical view
CVE-2021-1293 covers multiple web-management vulnerabilities caused by improper HTTP request validation. The affected interface can be reached over the network, needs no credentials or user interaction, and may allow arbitrary code execution as root. CVSS is 9.8 critical.
Likely exposure
Exposure is most likely where affected Cisco RV160, RV160W, RV260, RV260P, or RV260W VPN routers have their web-based management interface reachable from untrusted networks. Internet-facing administration materially increases urgency.
Exploitation context
The provided bundle does not show CISA KEV listing or cited evidence of active exploitation. The advisory states exploitation is possible through crafted HTTP requests to the web-based management interface, with no authentication required.
Researcher notes
The source bundle identifies affected model families but does not include version ranges, fixed releases, or detailed proof-of-concept status. Validation should focus on model, firmware, and management-interface exposure rather than exploit reproduction.
Mitigation direction
- Identify any RV160, RV160W, RV260, RV260P, or RV260W devices in service.
- Review Cisco’s advisory for fixed firmware and vendor-supported upgrade guidance.
- Remove web-management access from the internet and untrusted networks.
- Restrict management access to trusted administrative networks only.
- Prioritize replacement if firmware support or upgrade status is unclear.
Validation and detection
- Inventory edge and branch routers by model and firmware version.
- Confirm whether web-based management is reachable from external networks.
- Check Cisco advisory applicability for each discovered RV160 or RV260 device.
- Review device logs for unexpected administrative access or configuration changes.
- Verify upgraded devices no longer match the affected firmware state.
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-472: 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-2021-1293 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20210203 Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Execution 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.
External Control of Assumed-Immutable Web Parameter
External Control of Assumed-Immutable Web Parameter represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.