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 send crafted web-management requests to run commands as root or reboot the device. Cisco says it has not released software updates for these vulnerabilities.
Executive priority
Treat as a moderate-priority exposure issue. The attacker needs admin credentials, but successful exploitation can give root-level control of a perimeter device or disrupt connectivity. Lack of Cisco software updates makes exposure reduction and replacement planning important.
Technical view
The web-based management interface insufficiently validates user fields in incoming HTTP packets. With authenticated Administrator access, a remote attacker can trigger arbitrary command execution with root privileges or denial of service through unexpected restart. CVSS is 4.7, network-accessible, low complexity, high privileges required, no user interaction.
Likely exposure
Exposure is limited to organizations still operating the listed Cisco Small Business RV models, especially where the web management interface is reachable by administrators over a network path. Risk increases if administrator credentials are shared, weak, reused, or exposed.
Exploitation context
The source bundle does not show CISA KEV listing or public active exploitation. Exploitation requires valid Administrator credentials and a crafted request to the web management interface, so credential compromise or insider access materially changes the risk.
Researcher notes
Keep assessment scoped to the listed Cisco Small Business RV models. Do not claim unauthenticated exploitation. The key validation questions are management-interface reachability, administrator credential control, and whether compensating controls exist because the source states no Cisco software update was released.
Mitigation direction
- Check Cisco advisory and current vendor guidance before changing affected devices.
- Do not assume a firmware patch exists; Cisco reported no software updates.
- Restrict web-management access to trusted admin networks or VPN paths.
- Remove internet exposure of the management interface where operationally possible.
- Review router Administrator accounts and rotate credentials if exposure is uncertain.
- Plan replacement or compensating controls if vendor support cannot remediate.
Validation and detection
- Inventory Cisco RV110W, RV130, RV130W, and RV215W routers in use.
- Confirm whether web-based management is enabled and reachable from untrusted networks.
- Review administrator account list, credential ownership, and recent changes.
- Check logs or monitoring for unexpected reboots or suspicious management access.
- Map affected routers to business sites and network segments they protect.
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-2022-20901 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.
