Security readout for executives and security teams
Plain-English summary
Cisco Small Business RV110W, RV130, RV130W, and RV215W routers have flaws in the web management interface. A remote attacker with valid Administrator credentials could run commands as root or force a restart. Cisco has not released software updates for these vulnerabilities.
Executive priority
Treat as a focused network edge risk. Urgency is lower than unauthenticated internet RCE, but devices with exposed management interfaces or weak admin credential practices should be prioritized for restriction or replacement planning.
Technical view
The issue is insufficient validation of user fields in incoming HTTP packets to the web-based management interface. Exploitation requires authenticated Administrator access and a crafted request. Successful exploitation can produce root-level command execution or denial of service. CVSS v3.1 is 4.7 with high privileges required.
Likely exposure
Exposure is likely limited to organizations still running the listed Cisco Small Business RV models, especially where the web-based management interface is reachable from remote networks. The source bundle does not provide specific vulnerable firmware versions or CPE identifiers.
Exploitation context
The provided sources do not show known active exploitation, and this CVE is not marked KEV. Exploitation is not unauthenticated; the attacker needs valid Administrator credentials on the affected device.
Researcher notes
Evidence supports authenticated remote command execution and DoS via the web management interface. Public source data is limited: no firmware range, exploit-in-the-wild evidence, or vendor patch is provided. Avoid assuming broader RV-series impact beyond the named models.
Mitigation direction
- Check the Cisco advisory for current vendor guidance and replacement options.
- Restrict web management access to trusted administrative networks only.
- Disable remote web management if it is not operationally required.
- Audit Administrator accounts and remove unused or shared credentials.
- Monitor affected routers for unexpected restarts or configuration changes.
Validation and detection
- Inventory Cisco RV110W, RV130, RV130W, and RV215W routers.
- Confirm whether each device exposes the web-based management interface remotely.
- Review administrator account access and recent authentication history.
- Verify whether any compensating controls restrict management-plane access.
- Document Cisco advisory status and absence of vendor software updates.
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-2022-20886 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.
