Security readout for executives and security teams
Plain-English summary
This issue affects Cisco Small Business RV110W, RV130, RV130W, and RV215W routers. An attacker with valid administrator credentials could send a crafted management request and run commands as root or crash the device. Cisco states it has not released software updates for these vulnerabilities.
Executive priority
Treat this as a moderate priority with higher urgency for internet-exposed or unmanaged sites. The main business concern is that an administrator credential compromise could become full router control or service disruption, and the source states no Cisco update is available.
Technical view
The vulnerabilities are in the web-based management interface and stem from insufficient validation of user fields in incoming HTTP packets. Exploitation requires network access to the management interface and valid Administrator credentials. Successful exploitation can allow root-level command execution or an unexpected restart causing denial of service.
Likely exposure
Exposure is limited to the named Cisco Small Business RV router models where the web management interface is reachable. Business risk increases if administration is exposed outside a trusted management network or if administrator credentials are weak, reused, or compromised.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. The attacker must already have valid Administrator credentials, which lowers broad opportunistic risk but makes compromised admin accounts or exposed management interfaces important.
Researcher notes
Do not assume unauthenticated exploitation from the provided evidence. The CVSS vector is AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L. The affected surface is the web management interface, and the reported impacts are root-level command execution and device restart.
Mitigation direction
- Check Cisco advisory for current product guidance and support status.
- Restrict router management access to trusted administrative networks only.
- Disable unnecessary remote management exposure where operationally possible.
- Review and rotate Administrator credentials for affected devices.
- Plan replacement or isolation if no vendor-supported fixed software is available.
Validation and detection
- Inventory Cisco RV110W, RV130, RV130W, and RV215W routers.
- Confirm whether each device exposes its web-based management interface.
- Verify management access is limited to approved administrators and networks.
- Review authentication logs for unusual administrator access, if available.
- Document absence of Cisco software updates in remediation tracking.
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-2022-20896 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.
