Security readout for executives and security teams
This is a critical Cisco Small Business router issue affecting RV160, RV260, RV340, and RV345 series firmware. A remote unauthenticated attacker could gain serious control over affected devices, including code execution, command execution, authorization bypass, unsigned software execution, or denial of service. Exposure is most likely where Cisco Small Business RV160, RV260, RV340, or RV345 routers remain deployed. Internet-reachable administrative, VPN, or router services raise urgency, but the provided sources do not enumerate exact vulnerable firmware versions. Treat this as an urgent edge-device risk. These routers sit at network boundaries, and CISA KEV status indicates known exploitation. Confirm whether any affected models remain in use and remediate quickly under emergency change handling. Mitigation focus: Review Cisco’s advisory for affected firmware and fixed release guidance.; Prioritize replacement or upgrade of exposed RV160, RV260, RV340, and RV345 devices.; Restrict network access to router management and remote access services..
Michael Williams reviewed this cited source version on .
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CWE-121: Exact CWE lookup
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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-2022-20699 mapping review
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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
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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.zerodayinitiative.com/advisories/ZDI-22-414/CVE reference · x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-20699CVE 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.