Security readout for executives and security teams
Plain-English summary
This CVE affects Cisco Small Business RV110W, RV130, RV130W, and RV215W routers. An attacker with valid Administrator credentials could use the web management interface to run commands as root or force a restart. Cisco reported no software updates for these vulnerabilities, so exposure management matters.
Executive priority
Treat this as a moderate-priority router exposure issue. It is not cited as actively exploited and requires Administrator credentials, but affected devices can be fully compromised or disrupted and no Cisco software fix is listed.
Technical view
The flaws are in the web-based management interface and stem from insufficient validation of user fields in incoming HTTP packets. Authenticated remote attackers with Administrator privileges can send crafted requests that may trigger arbitrary command execution with root privileges or denial of service through unexpected restarts.
Likely exposure
Exposure is limited to organizations still running the listed Cisco Small Business router models, especially where the web-based management interface is reachable by administrators or less-trusted networks.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires valid Administrator credentials, but successful command execution would run with root-level privileges on the affected device.
Researcher notes
Evidence is strong for affected models, prerequisites, impact, and lack of Cisco updates. The bundle does not provide exploit status, detailed vulnerable versions, public exploit maturity, or vendor mitigation beyond the advisory reference.
Mitigation direction
- Check Cisco’s advisory for current vendor guidance and replacement direction.
- Restrict web management access to trusted administrative networks where possible.
- Review and reduce Administrator accounts on affected routers.
- Prioritize migration from affected devices because no Cisco update is cited.
Validation and detection
- Inventory Cisco RV110W, RV130, RV130W, and RV215W routers.
- Confirm whether the web-based management interface is reachable remotely.
- Review Administrator account ownership and recent management activity.
- Check Cisco’s advisory for any updated remediation 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-120: 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-2022-20911 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
- Medium
- CVSS
- 4.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
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:L/I:L/A:L1.23.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.7MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- 20220720 Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers 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.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
