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Vulnerabilities/CVE-2022-20708Public Intelligence Dossier
Source: cisco · Limited verification•Last verified: •Collection Degraded
CVE-2022-20708ListedCRITICAL (raw)CVSS 10.0CWE-121

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.

Published: 10 Feb 2022•Last updated: 17 Jun 2026, 09:54 AM IST•Source identifier: psirt@cisco.com
Dossier completeness: source-provided sections 3 / 3 · rule guidance available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Listed
Added03 Mar 2022
Due17 Mar 2022
RansomwareUnknown
CVSS score
10.0CRITICAL (raw)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Metric sourcepsirt@cisco.com
EPSS probability
14.9%0.149
Percentile97th
Weakness type
CWE-121
CWE-78
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

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.

SOC priority

Immediate Attention

Actively exploited (source statement)

Yes

Publicly disclosed

Unknown

Risk basis: CISA KEV exploitation signal; SOC ecosystem technology relevance; CRITICAL severity; Source-confirmed exploitation or CISA KEV/ransomware metadata

Affected Products & Remediation

4 source-backed products
Affected products and versions (source)
  • cisco rv340 firmware · <= 1.0.03.24 · NVD CPE · Source
  • cisco rv340w firmware · <= 1.0.03.24 · NVD CPE · Source
  • cisco rv345 firmware · <= 1.0.03.24 · NVD CPE · Source
  • cisco rv345p firmware · <= 1.0.03.24 · NVD CPE · Source
NVD applicability prerequisites: cpe:2.3:h:cisco:rv340:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:rv340w:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:rv345:-:*:*:*:*:*:*:*, cpe:2.3:h:cisco:rv345p:-:*:*:*:*:*:*:*. These are conditions, not proof that an environment is exposed or unaffected.
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

  • CISA KEV: Apply updates per vendor instructions.

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Listed
Exploited (source statement)
Yes
Publicly disclosed (source)
Unknown

CISA required action: Apply updates per vendor instructions.

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

Matched kev-network-exposure (CVSS AV:N, CISA KEV Listed); command-injection (CWE-78)

Exposure

  1. Identify assets with the exact CVE and confirm the affected product/version against the advisory.Telemetry: DeviceTvmSoftwareVulnerabilities · KEV listing raises urgency, but inventory is needed to establish local exposure. · Rule kev-network-exposure
  2. Identify installations of the affected product and compare versions with the advisory.Telemetry: DeviceTvmSoftwareVulnerabilities · A weakness class does not establish local exposure. · Rule command-injection

Exploitation evidence

  1. Review relevant edge or application access logs for unusual requests around the advisory window.Telemetry: CommonSecurityLog · Log review is a hunting hypothesis; KEV listing alone does not show local exploitation. · Rule kev-network-exposure
Show more (2)

Exploitation evidence

  1. Review command interpreters spawned by the affected service or application.Telemetry: DeviceProcessEvents · Unexpected process lineage can support command-injection hunting. · Rule command-injection

Response

  1. Recheck the affected assets after the source-stated mitigation or update is applied.Telemetry: DeviceTvmSoftwareVulnerabilities · A follow-up inventory check verifies local remediation. · Rule kev-network-exposure

CISA KEV Record

Catalog entry
03 Mar 2022
Required action due
17 Mar 2022
Known ransomware use
Unknown

Apply updates per vendor instructions.

Change History & Source Data

— No recorded material change

CNA / source
psirt@cisco.com
Record status · verification
UPDATED · CISA KEV confirmed
CPE
cpe:2.3:o:cisco:rv340_firmware:*:*:*:*:*:*:*:*, cpe:2.3:h:cisco:rv340:-:*:*:*:*:*:*:*, cpe:2.3:o:cisco:rv340w_firmware:*:*:*:*:*:*:*:*, cpe:2.3:h:cisco:rv340w:-:*:*:*:*:*:*:*, cpe:2.3:o:cisco:rv345_firmware:*:*:*:*:*:*:*:*, cpe:2.3:h:cisco:rv345:-:*:*:*:*:*:*:*, cpe:2.3:o:cisco:rv345p_firmware:*:*:*:*:*:*:*:*, cpe:2.3:h:cisco:rv345p:-:*:*:*:*:*:*:*

Evidence & Provenance

4 public sources
CISA KEV CatalogAdded 2022-03-03tools.cisco.comSource recordnvd.nist.govSource recordzerodayinitiative.comSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2022-20708
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2022-20708
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2022-20708"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
Open KQL Library

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Correlated briefings

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.