Security readout for executives and security teams
Plain-English summary
This issue affects older Cisco Small Business RV110W, RV130, RV130W, and RV215W routers. An attacker needs valid Administrator credentials, but could then run commands as root or force restarts. Business urgency depends on whether these routers are still deployed and whether their management interface is reachable.
Executive priority
Prioritize replacement or isolation if these routers protect business sites or remote offices. The required admin credential reduces immediate likelihood, but root-level impact and no listed Cisco update make continued exposure difficult to justify.
Technical view
The web-based management interface insufficiently validates user fields in incoming HTTP packets. An authenticated remote attacker with Administrator credentials can send a crafted request that may execute arbitrary commands with root privileges or restart the device. Cisco reports no software updates addressing these vulnerabilities.
Likely exposure
Exposure is most likely where affected Cisco Small Business RV routers remain in service and the web-based management interface is reachable by untrusted networks or shared administrator accounts.
Exploitation context
The provided sources do not show active exploitation, and the CVE is not marked as KEV. Exploitation requires valid Administrator credentials, which lowers broad opportunistic risk but increases concern after credential theft or insider misuse.
Researcher notes
Key constraints are authenticated access and the web management attack surface. The source describes insufficient validation of HTTP user fields and CWE-120. Avoid assuming unauthenticated exploitation, public exploit use, or a vendor patch unless new Cisco guidance confirms it.
Mitigation direction
- Identify and remove affected router models where possible.
- Restrict web-based management access to trusted administrative networks only.
- Review and rotate Administrator credentials for affected devices.
- Remove unnecessary administrator accounts.
- Monitor Cisco guidance because no software update is listed.
Validation and detection
- Inventory Cisco RV110W, RV130, RV130W, and RV215W devices.
- Confirm whether web management is reachable from untrusted networks.
- Review administrator account ownership and recent credential changes.
- Check device logs for unexpected restarts or configuration changes.
- Verify Cisco advisory status before relying on patch availability.
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-2022-20895 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.
