Security readout for executives and security teams
Plain-English summary
Cisco reports authenticated remote flaws in several Small Business RV routers that could let an administrator-level attacker run commands as root or reboot the device. Cisco has not released software updates for these vulnerabilities. Business urgency is driven by whether these routers remain deployed and how reachable their web management interfaces are.
Executive priority
Treat this as a moderate-priority infrastructure hygiene issue unless affected routers manage sensitive sites or are remotely reachable. The absence of a vendor software fix makes inventory, access restriction, credential control, and replacement planning more important than routine patch scheduling.
Technical view
The issue affects the web-based management interface of Cisco RV110W, RV130, RV130W, and RV215W routers. Insufficient validation of user fields in incoming HTTP packets can allow arbitrary command execution with root privileges or denial of service. Exploitation requires valid Administrator credentials. Cisco lists no software update addressing the issue.
Likely exposure
Exposure is likely limited to organizations still operating the named Cisco Small Business RV models. Risk increases if the web management interface is reachable from remote or untrusted networks, or if Administrator credentials are shared, weak, or compromised. The source bundle does not provide internet-exposure prevalence.
Exploitation context
The provided sources do not show active exploitation and the CVE is not listed as KEV in the bundle. Exploitation requires authenticated Administrator access to the web management interface and a crafted HTTP request. That privilege requirement lowers broad internet-scale risk but still matters for compromised admin accounts or exposed management paths.
Researcher notes
The source bundle identifies CWE-120 and CVSS 3.1 score 4.7 with AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L. Impact includes root-level command execution or DoS through the web management interface. Evidence is insufficient to claim public exploitation, proof-of-concept availability, or a software fix.
Mitigation direction
- Check Cisco's advisory for current vendor guidance and product status.
- Inventory and prioritize replacement planning for affected RV110W, RV130, RV130W, and RV215W routers.
- Limit access to the web management interface to trusted administrative networks.
- Review Administrator credential hygiene and remove unused admin accounts.
- Monitor affected routers for unexpected restarts or management-interface activity.
Validation and detection
- Confirm whether any named Cisco RV router models remain deployed.
- Verify whether web-based management is enabled and remotely reachable.
- Review admin account inventory and recent authentication activity.
- Check change logs or monitoring for unexpected router reboots.
- Document compensating controls where no vendor patch exists.
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-2022-20875 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.
