Security readout for executives and security teams
Plain-English summary
This affects older Cisco Small Business RV routers. An attacker who already has valid Administrator credentials could abuse the web management interface to 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 targeted infrastructure hygiene issue, not an emergency based on current sources. Because no Cisco software fix is listed, prioritize exposure reduction, credential control, and replacement planning for affected routers.
Technical view
CVE-2022-20910 covers multiple web-based management interface flaws in Cisco RV110W, RV130, RV130W, and RV215W routers. Insufficient validation of user fields in incoming HTTP packets can permit authenticated remote command execution with root privileges or denial of service through unexpected restart. Exploitation requires valid Administrator credentials.
Likely exposure
Exposure is most likely where affected RV routers remain deployed and their web management interface is reachable by administrators or broader networks. Risk increases if Administrator credentials are weak, shared, reused, or compromised.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. Exploitation is remote but requires high privileges: valid Administrator credentials on the affected device. Cisco reported no software updates addressing the issue.
Researcher notes
Evidence supports authenticated remote command execution and denial of service via HTTP field validation flaws in the management interface. The CVSS score is 4.7 because Administrator credentials are required, but successful exploitation can reach root-level command execution. No public source in the bundle confirms exploitation in the wild.
Mitigation direction
- Check Cisco advisory for current vendor guidance and lifecycle options.
- Inventory and prioritize replacement of affected RV110W, RV130, RV130W, and RV215W routers.
- Restrict web management access to trusted administrator networks where possible.
- Review and rotate Administrator credentials for affected devices.
- Monitor Cisco and CVE sources for any updated remediation guidance.
Validation and detection
- Identify deployed Cisco RV110W, RV130, RV130W, and RV215W routers.
- Confirm whether web management interfaces are reachable from untrusted networks.
- Verify that Administrator accounts are necessary, unique, and controlled.
- Check whether each device is still supported or has replacement plans.
- Review CISA KEV and vendor sources for any exploitation-status change.
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-2022-20910 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.
