CASCACascade Atlas

Evidence dossier

CVE-2022-20701

Cisco Small Business RV Series Routers Vulnerabilities

Exploited in the wild (CISA KEV since Mar 3, 2022). NVD reports CVSS 3.1 7.8. Severity assessments differ within at least one CVSS version. EPSS estimates 9.7% exploit likelihood as of Aug 27, 2026.

70.4–76.9Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

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.

State
PUBLISHED
Published
Feb 10, 2022
Updated
Oct 21, 2025
Evidence coverage
84%

Evidence chronology

What was known when

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  1. Source dateSource date omittedFirst observed by CASCA
    CISA-ADP

    Record text: CISA ADP Vulnrichment

    Inspect raw assertion
    Field
    container
    Value
    CISA ADP Vulnrichment
    Original evidence ↗
  2. Source dateSource date omittedFirst observed by CASCA
    cisco

    Record text: Cisco Small Business RV Series Routers Vulnerabilities

    Inspect raw assertion
    Field
    container
    Value
    Cisco Small Business RV Series Routers Vulnerabilities
    Original evidence ↗
  3. Source dateSource date omittedFirst observed by CASCA
    CVE Program

    Record text: CVE Program Container

    Inspect raw assertion
    Field
    container
    Value
    CVE Program Container
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

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

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 9.75% probability · 95.16th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.097470000000; percentile 0.951620000000
    Original evidence ↗

Assessments differ

NVD7.8CVSS 3.1 · source date omitted
NVD7.2CVSS 2.0 · source date omitted
psirt@cisco.com10.0CVSS 3.1 · source date omitted

Values are shown separately by source and CVSS version.

ExploitationCatalog member

CISA KEV · catalog date Mar 3, 2022 · first observed Jul 19, 2026

Exploit likelihood9.75%

FIRST EPSS · score date Aug 27, 2026 · 95.2th percentile · first observed Aug 27, 2026

SeverityAssessments differ

NVD · CVSS 3.1 · first observed Jul 19, 2026 · values shown separately below

Evidence detail

Source limits and decisions

Why each evidence state has this value

casca-unknown-reasons-v1
Exploitation statusEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Severity assessmentAssessments differ

Eligible assertions materially conflict and remain visible side by side.

Revision
casca-direct-cvss-eligibility-v1
Cutoff
Aug 27, 2026
Resolution
Resolve conflict
Affected productsSource-reported scope

The cited source assertion is retained while canonical product linkage remains open.

Revision
casca-factor-d-obligations-v1
Cutoff
Aug 27, 2026
Resolution
Resolve identity

Source comparison

Who said what

CISA-ADPIndependent enrichment
Record text

CISA ADP Vulnrichment

Inspect raw assertion
Field
container
Value
CISA ADP Vulnrichment
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
ciscoOriginal assertion
Record text

Cisco Small Business RV Series Routers Vulnerabilities

Inspect raw assertion
Field
container
Value
Cisco Small Business RV Series Routers Vulnerabilities
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CVE ProgramDerivative copy
Record text

CVE Program Container

Inspect raw assertion
Field
container
Value
CVE Program Container
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

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

Inspect raw assertion
Field
observed_exploitation
Value
Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

9.75% probability · 95.16th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.097470000000; percentile 0.951620000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
8Underlying assertions
8Canonical products
4Target assertions
4Constraint assertions

Grouped from 8 configuration nodes in this exact snapshot. Visual grouping is navigational; asset exposure and root cause require cited evidence.

Identity source boundaries
  • Cpe dictionary1,775,266 records · observed through 2026-07-21T06:45:29.809Z27d65b0f-b718-4b4f-bb79-c47c68d09dfa
  • Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z955dae73-7302-438b-aee1-058d7cc5d48e

9 scope groups

cisco · source assertedCiscoCisco Small Business RV Series Router FirmwareDirect source scope
Affected: n/a
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "n/a"}]
NVD CPE · HARDWAREciscorv340Environmental constraint · 1 assertions
Version not applicableCanonical identity product-01da9ecb3b7fb6239b61273ac924db6cd0e5435e5d6f557ea75deb5af8badf46Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:rv340:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    2a4411ac-2a74-4315-ba6b-d7e1aa538bdb
NVD CPE · OPERATING SYSTEMciscorv340_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (<= 1.0.03.24)Canonical identity product-71954f222fc60b05adc78354f4678f244dacb856ab960191a43d001deb6a3492Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:cisco:rv340_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    through including 1.0.03.24
    Match ID
    2c925382-a223-4342-83d2-53b3071f9b45
NVD CPE · HARDWAREciscorv340wEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-78e7052fbdd34a64fcc429523fd631b36daa749def494082afe8b6ba2eb2a7b1Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:rv340w:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    21e55019-f969-4acd-a6c8-1d2ee05f8ee4
NVD CPE · OPERATING SYSTEMciscorv340w_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (<= 1.0.03.24)Canonical identity product-c5059dfaedc43556329777513d6a91a13e8bdf3a045e87b008a3c7d02aecf58aLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:cisco:rv340w_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 0
    Logic
    OR
    Version bounds
    through including 1.0.03.24
    Match ID
    ddd6c848-8ef9-410a-b899-02f0e03eb653
NVD CPE · HARDWAREciscorv345Environmental constraint · 1 assertions
Version not applicableCanonical identity product-97441c4861b1b6f4266beedc47b0984650c84c3dc92cc5d34f66701e4957b94fLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:rv345:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    2 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    5e91e68b-cbe9-462e-82d4-6f588b8e84e8
NVD CPE · OPERATING SYSTEMciscorv345_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (<= 1.0.03.24)Canonical identity product-5002ed34e5eb2e27fed9178a222cfc152387cb8505c1d32996fbf758d01a3051Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:cisco:rv345_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    2 · node/0 · match 0
    Logic
    OR
    Version bounds
    through including 1.0.03.24
    Match ID
    ce4c000c-89ab-4255-8d2b-4520bcb90490
NVD CPE · HARDWAREciscorv345pEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-830f40d9f1ee8166a3ce3b15dc387e5e444496d36e4831b3b48b20179b2f65ecLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:rv345p:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    3 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    5120bab7-fb3a-481e-9ecd-48341846afbd
NVD CPE · OPERATING SYSTEMciscorv345p_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (<= 1.0.03.24)Canonical identity product-b2bd848ee20252dd968db368f43bf9a9616b6fc9f843e460c280475850181e13Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:cisco:rv345p_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 0
    Logic
    OR
    Version bounds
    through including 1.0.03.24
    Match ID
    0ea14e0b-442a-467d-92ff-369ad3a1a294

Affected-product evidence

Accepted scope and product mapping

4 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-0774b265c0e837e737aaf99ed0f2450c048e61f34267ca59d8623878b839334e · product-5002ed34e5eb2e27fed9178a222cfc152387cb8505c1d32996fbf758d01a3051

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
9e4155e4-283b-4724-a332-16bff537f842
Mapping establishedEvidence supported

vendor-0774b265c0e837e737aaf99ed0f2450c048e61f34267ca59d8623878b839334e · product-71954f222fc60b05adc78354f4678f244dacb856ab960191a43d001deb6a3492

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
7b28829e-a763-4403-9798-d930bdfb0667
Mapping establishedEvidence supported

vendor-0774b265c0e837e737aaf99ed0f2450c048e61f34267ca59d8623878b839334e · product-b2bd848ee20252dd968db368f43bf9a9616b6fc9f843e460c280475850181e13

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
fa26323a-e8ab-4471-b9bb-d88ebd18db72
Mapping establishedEvidence supported

vendor-0774b265c0e837e737aaf99ed0f2450c048e61f34267ca59d8623878b839334e · product-c5059dfaedc43556329777513d6a91a13e8bdf3a045e87b008a3c7d02aecf58a

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
770be093-5f2f-4b57-98a1-57ee654955b6
Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class
Direct cve affected
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
06105ce9-50e5-44d8-8250-a6def7274b92

Assessments

CVSS by origin

7.8
NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:L/AC:L/Au:N/C:C/I:C/A:C
10.0
psirt@cisco.comCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
10.0
ciscoCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Direct CVE/CNA normalized decisions

10.0Priority eligible

cisco

CVSS 3.1 · Primary · Original assertion · rank 1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Validation
Valid match
Recomputed
10.0
Decision reason
Evidence supported
Policy
casca-direct-cvss-eligibility-v1

Assessments are retained side by side under closed precedence. Cascade never averages CVSS.

Evidence boundaries

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; remaining scope stays source-scoped.
  • NVD-carried upstream facts remain derivative; independent corroboration requires a separately authored source.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.
  • OSV aggregation and OSV-converted NVD material are not independent corroboration.
  • Red Hat facts are vendor assertions for the exact supplied products.
  • Nonmembership and not-yet-observed states are not proof of safety.