Security readout for executives and security teams
Plain-English summary
This is a critical Cisco Small Business RV router issue. The source bundle says affected routers can be taken over or disrupted without authentication or user interaction. Because CISA lists CVE-2022-20700 in KEV, organizations should treat internet-exposed or business-critical RV devices as urgent risk.
Executive priority
Treat this as an urgent edge-device remediation item. Affected routers sit in positions where compromise can expose business networks, disrupt connectivity, or support further intrusion. Prioritize inventory and vendor-guided remediation before routine maintenance work.
Technical view
Cisco reports multiple vulnerabilities affecting RV160, RV260, RV340, and RV345 Series routers. Impacts include arbitrary code execution, command execution, privilege elevation, authentication and authorization bypass, unsigned software execution, and DoS. The CVSS 3.1 score is 10.0 with network attack vector, no privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely where Cisco RV160, RV260, RV340, or RV345 routers are deployed at branch, small-office, or remote-access network edges. The bundle does not provide affected firmware versions, so asset owners must verify device models and firmware status against Cisco guidance.
Exploitation context
CISA KEV status means known exploitation is reported. The provided bundle does not include campaign details, exploit method, target sectors, or current exploitation volume, so do not infer broader activity beyond the KEV signal.
Researcher notes
The bundle ties CVE-2022-20700 to CWE-121 and a Cisco multi-vulnerability advisory. It does not provide per-version affected ranges, exploit details, or patch identifiers. Analysis should remain scoped to Cisco RV160, RV260, RV340, and RV345 routers and validated against the Cisco advisory.
Mitigation direction
- Identify all RV160, RV260, RV340, and RV345 routers in use.
- Check Cisco’s advisory for fixed firmware, workarounds, or replacement guidance.
- Prioritize remediation for internet-facing or remotely managed routers.
- Restrict management access to trusted administrative networks.
- Monitor Cisco and CISA guidance until every affected asset is resolved.
Validation and detection
- Confirm model and firmware versions for every Cisco RV router.
- Compare findings against Cisco’s advisory for CVE-2022-20700.
- Verify no affected router management interface is broadly reachable.
- Review logs for unusual administrative access, crashes, or configuration changes.
- Track remediation status against CISA KEV requirements where applicable.
Public sources used
Michael Williams reviewed this cited source version on .
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-121: 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-2022-20700 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
- Critical
- CVSS
- 10 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
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.
CISA KEV status
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:N/UI:N/S:C/C:H/I:H/A:H3.96Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20220203 Cisco Small Business RV Series Routers VulnerabilitiesCVE reference · vendor-advisory, x_refsource_CISCO
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-20700CVE reference · government-resource
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.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.