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Vulnerabilities

Vulnerability · CVE-2022-20701

Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerability

Published Feb 10, 2022 · catalog updated Jun 16, 2026 · Cisco RV Series Routers

Patch now

CVE-2022-20701 is in the CISA known-exploited catalog, due Mar 17, 2022. Confirm Cisco RV Series Routers against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High7.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
9.75%
Remediation
Remediation guidance
Affected products
cpe cisco/rv340 firmware · cpe cisco/rv340w firmware · cpe cisco/rv345 firmware · cpe cisco/rv345p firmware · vendor Cisco RV Series Routers · vendor Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe cisco/rv340 firmwareversion unspecified
  • cpe cisco/rv340w firmwareversion unspecified
  • cpe cisco/rv345 firmwareversion unspecified
  • cpe cisco/rv345p firmwareversion unspecified
  • vendor Cisco RV Series Routersversion unspecified
  • vendor Cisco Small Business RV160, RV260, RV340, and RV345 Series Routersversion unspecified

How to fix CVE-2022-20701

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2022-20701 is in the CISA known-exploited catalog, due Mar 17, 2022. Confirm Cisco RV Series Routers against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions.

What should an analyst verify?

CWE-121: Stack-based Buffer Overflow; CWE-787: Out-of-bounds Write. EPSS 9.75%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Cisco security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 10, 2022 · Catalog

    Detected

    Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details sect

  2. Mar 3, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Mar 17, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details sect

Sources

  • CISA KEVConfirmed exploitationCVE-2022-20701

    A vulnerability in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code elevate privileges, execute arbitrary commands, bypass authentication and authorization protections, fetch and run unsigned software, or cause a denial of service (DoS).

    cisa.gov
  • CVE.orgVulnerability recordCVE-2022-20701

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2022-20701

    30-day exploitation probability 9.7%

    first.org
  • NIST NVDVulnerability recordCVE-2022-20701

    Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and ru

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2022-20701

    A vulnerability in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code elevate privileges, execute arbitrary commands, bypass authentication and authorization protections, fetch and run unsi

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.