# CASCA evidence receipt — CVE-2023-20118

- Generation: `gen-409cbd0c74ff4feb70e4944e6b98ce40`
- As known: 2026-07-21T08:13:17.697275+00:00
- Comparison: gen-56ccdaf914f7b4be95b689ccae7dc20d
- Score policy: public-priority-v1.0.1
- Conflict: present

## Source assertions

- **CISA-ADP** (independent_enrichment): container — CISA ADP Vulnrichment
  - Observed: 2026-07-19T04:27:06.398189+00:00
  - Citation: https://www.cve.org/CVERecord?id=CVE-2023-20118
- **cisco** (original_assertion): container — A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary commands on an affected device.

 This vulnerability is due to improper validation of user input within incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to gain root-level privileges and access unauthorized data. To exploit this vulnerability, an attacker would need to have valid administrative credentials on the affected device.

 Cisco has not and will not release software updates that address this vulnerability.   However, administrators may disable the affected feature as described in the Workarounds ["#workarounds"] section.

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  - Observed: 2026-07-19T04:27:06.398189+00:00
  - Citation: https://www.cve.org/CVERecord?id=CVE-2023-20118
- **CVE** (derivative_copy): container — CVE Program Container
  - Observed: 2026-07-19T04:27:06.398189+00:00
  - Citation: https://www.cve.org/CVERecord?id=CVE-2023-20118
- **CISA KEV** (original_assertion): observed_exploitation — Cisco Small Business RV Series Routers Command Injection Vulnerability
  - Observed: 2026-07-19T04:54:04.25158+00:00
  - Citation: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- **FIRST EPSS** (original_assertion): model_probability — Probability 0.541070000000; percentile 0.988930000000
  - Observed: 2026-07-19T04:54:35.756809+00:00
  - Citation: https://www.first.org/epss/data_stats.html

## CVSS assessments

- **nvd@nist.gov** (Primary, CVSS 3.1): 7.2 — score eligible
  - Evidence class: nvd_enrichment_exact; source rank: 0
  - Validation: valid_match
  - Vector: `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`
- **psirt@cisco.com** (Secondary, CVSS 3.1): 6.5 — score eligible
  - Evidence class: exact_record_cna; source rank: 1
  - Validation: valid_match
  - Vector: `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N`
- **cisco** (unknown, CVSS 3.1): 6.5 — display only
  - Evidence class: direct_cve_record_display_only; source rank: not applicable
  - Validation: display-only direct record assessment
  - Vector: `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N`

## Applicability scope

- **Cisco · Cisco Small Business RV Series Router Firmware** (direct_source; unknown)
  - Versions: [{"status": "affected", "version": "1.0.1.17"}, {"status": "affected", "version": "1.0.2.03"}, {"status": "affected", "version": "1.1.0.09"}, {"status": "affected", "version": "1.1.1.19"}, {"status": "affected", "version": "1.1.1.06"}, {"status": "affected", "version": "1.2.1.13"}, {"status": "affected", "version": "1.2.1.14"}, {"status": "affected", "version": "1.3.1.12"}, {"status": "affected", "version": "1.3.2.02"}, {"status": "affected", "version": "1.3.1.10"}, {"status": "affected", "version": "1.4.2.15"}, {"status": "affected", "version": "1.4.2.17"}, {"status": "affected", "version": "1.4.2.19"}, {"status": "affected", "version": "1.4.2.20"}, {"status": "affected", "version": "1.4.2.22"}, {"status": "affected", "version": "1.5.1.05"}, {"status": "affected", "version": "1.5.1.11"}, {"status": "affected", "version": "1.5.1.13"}]
- **cisco · rv016** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-9d97e970b9372f9b20abf8c2e19a8a14eadf1457dd978de5019db196b6b21e68`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:rv016:-:*:*:*:*:*:*:*`
- **cisco · rv016_firmware** (vulnerable_target; supported)
  - Versions: Any version (unconstrained)
  - Canonical identity: `product-66c37ef9065bd80286b32962c920c03d67f524ac61b8e4c44949392e8e500a31`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:rv016_firmware:*:*:*:*:*:*:*:*`
- **cisco · rv042** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-fca922de1415f91ff2d493d88001de2f072e6c560a21c915f46c212d9cf1aaa3`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:rv042:-:*:*:*:*:*:*:*`
- **cisco · rv042_firmware** (vulnerable_target; supported)
  - Versions: Any version (unconstrained)
  - Canonical identity: `product-b681ee7a7598d48bcdda37514e009af2e4f6329a2ef211a500a23539c0cc9fed`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:rv042_firmware:*:*:*:*:*:*:*:*`
- **cisco · rv042g** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-01d2d2c992325502e9bf45e4aa4e690688dae275ecd126386aab75e8751b6ef7`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:rv042g:-:*:*:*:*:*:*:*`
- **cisco · rv042g_firmware** (vulnerable_target; supported)
  - Versions: Any version (unconstrained)
  - Canonical identity: `product-1cc60c0fe61e71c573be4768431370ead9da01648b49be31a83ae16aafcac2f4`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:rv042g_firmware:*:*:*:*:*:*:*:*`
- **cisco · rv082** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-fdd92367b16c23be2191cc2d65041849dd639a1d5d30680dc2a7c3f79162b0a6`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:rv082:-:*:*:*:*:*:*:*`
- **cisco · rv082_firmware** (vulnerable_target; supported)
  - Versions: Any version (unconstrained)
  - Canonical identity: `product-3fb1895aadff511a3e43deea6a24ec58163c6f87b4cfa80443b2cfb4d2ebd9fc`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:rv082_firmware:*:*:*:*:*:*:*:*`
- **cisco · rv320** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-6a201772be00d0070b80c731699abc8e8636404ed2929a7349d051252848472e`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:rv320:-:*:*:*:*:*:*:*`
- **cisco · rv320_firmware** (vulnerable_target; supported)
  - Versions: Any version (unconstrained)
  - Canonical identity: `product-d3217aac80b6f067fd20e7a89d502d75a701ea8b9f8dfac9dfde0fb7c6f39047`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:rv320_firmware:*:*:*:*:*:*:*:*`
- **cisco · rv325** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-6c5b450a5df9480ac635500249afc8902ee8b8b3d61acf07d48ef0af35b0ce0f`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:rv325:-:*:*:*:*:*:*:*`
- **cisco · rv325_firmware** (vulnerable_target; supported)
  - Versions: Any version (unconstrained)
  - Canonical identity: `product-29950a38c3a78ded551fd553c89f82c6462905813ac32e469e93c4ab57285964`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:rv325_firmware:*:*:*:*:*:*:*:*`

## Identity source boundaries

- **cpe_dictionary**: 1775266 records through 2026-07-21T06:45:29.809553+00:00
  - Run: `27d65b0f-b718-4b4f-bb79-c47c68d09dfa`
- **cpe_match**: 643502 records through 2026-07-21T08:13:17.697275+00:00
  - Run: `955dae73-7302-438b-aee1-058d7cc5d48e`

## Limitations and unknowns

- 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; unresolved scope remains unknown.
- NVD-carried upstream facts remain derivative and are not independent corroboration.
- 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.
- Factor D remains unknown because WC-03 has not converted canonical CPE mappings into generation-bound mapping obligations; canonical identity alone does not score applicability.
- Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.

Generated from CASCA normalized evidence. This receipt is not proof that an asset is affected, unaffected, safe, or fixed.