# CASCA evidence receipt — CVE-2020-3452

- 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-2020-3452
- **cisco** (original_assertion): container — Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Read-Only Path Traversal Vulnerability
  - Observed: 2026-07-19T04:27:06.398189+00:00
  - Citation: https://www.cve.org/CVERecord?id=CVE-2020-3452
- **CVE** (derivative_copy): container — CVE Program Container
  - Observed: 2026-07-19T04:27:06.398189+00:00
  - Citation: https://www.cve.org/CVERecord?id=CVE-2020-3452
- **CISA KEV** (original_assertion): observed_exploitation — Cisco ASA and FTD Read-Only Path Traversal 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 0.999920000000; percentile 0.999860000000
  - 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): 7.5 — score eligible
  - Evidence class: nvd_enrichment_exact; source rank: 0
  - Validation: valid_match
  - Vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`
- **nvd@nist.gov** (Primary, CVSS 2.0): 5 — score eligible
  - Evidence class: nvd_enrichment_exact; source rank: 0
  - Validation: valid_match
  - Vector: `AV:N/AC:L/Au:N/C:P/I:N/A:N`
- **psirt@cisco.com** (Secondary, CVSS 3.1): 7.5 — score eligible
  - Evidence class: exact_record_cna; source rank: 1
  - Validation: valid_match
  - Vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`
- **cisco** (unknown, CVSS 3.1): 7.5 — 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:N/UI:N/S:U/C:H/I:N/A:N`

## Applicability scope

- **Cisco · Cisco Adaptive Security Appliance (ASA) Software** (direct_source; unknown)
  - Versions: [{"status": "affected", "version": "unspecified", "lessThan": "9.6.4.42", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "9.8.4.20", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "9.9.2.74", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "9.10.1.42", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "9.13.1.10", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "9.14.1.10", "versionType": "custom"}]
- **cisco · adaptive_security_appliance_software** (vulnerable_target; supported)
  - Versions: Any version (unconstrained) (>= 9.10, < 9.10.1.42); Any version (unconstrained) (>= 9.12, < 9.12.3.12); Any version (unconstrained) (>= 9.13, < 9.13.1.10); Any version (unconstrained) (>= 9.14, < 9.14.1.10); Any version (unconstrained) (>= 9.6, < 9.6.4.42); Any version (unconstrained) (>= 9.8, < 9.8.4.20); Any version (unconstrained) (>= 9.9, < 9.9.2.74)
  - Canonical identity: `product-4f9b01b0d2b49f62a97941ed22de23d9f3ec08f598a5617c413c154933c87a27`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*`
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*`
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*`
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*`
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*`
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*`
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*`
- **cisco · asa_5505** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-fd08f91d4249eaa754571e5ef260de6d6ecff601db7e96e47670a7a7487e01fd`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:*`
- **cisco · asa_5510** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-8ad3feeb7306c41fceca813dda587eb3143d5cfaa2065dc66867f5fa839a6b3e`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:asa_5510:-:*:*:*:*:*:*:*`
- **cisco · asa_5512-x** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-3faa06d4b0afd17768b37fde89a5bda60cc00b0b7a357ba40dfbf9d6f03c64c6`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*`
- **cisco · asa_5515-x** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-bccd85dd976bb84be1a838cfb06eb16819a216dcfecafa255b8b9383f616dce0`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*`
- **cisco · asa_5520** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-e04ae50f943e12a8123f37e8da1d56321b9e220f64841414d001903f9dee1d93`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:asa_5520:-:*:*:*:*:*:*:*`
- **cisco · asa_5525-x** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-62a4e88969b6778c634f3a91128a163bbaedd268cd870501d50876e1b0b32af6`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:*`
- **cisco · asa_5540** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-86cfe993dd5172a7ecc30a3bca9b6a6aa8b29c63c1b0b9bc8acaf66b1b199862`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:asa_5540:-:*:*:*:*:*:*:*`
- **cisco · asa_5545-x** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-d51f284d2c6c44d9b59aca9d7d4c7f00a4ce5d536ad38e2917433fe7cce03aa9`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:*`
- **cisco · asa_5550** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-f8aa3b82b722e9e73e0848e1cebee204e1bc1c8fda30800bd226c6f15265fb6f`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:asa_5550:-:*:*:*:*:*:*:*`
- **cisco · asa_5555-x** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-f92e331528b286270fbe594b6b206fdf57831d6f725b2b957080b750f25ed9a3`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*`
- **cisco · asa_5580** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-a222dfd9b843d405f20b3d5a6944774194e909a6931284016c117f0a34237039`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:*`
- **cisco · asa_5585-x** (environmental_constraint; constrained)
  - Versions: Version not applicable
  - Canonical identity: `product-dd37e285ddc217859261ba961402b6965bf92548c624312e704f714e988aa313`
  - Official link states: linked_exact
  - Criterion (linked_exact, environmental_constraint): `cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:*`
- **cisco · firepower_threat_defense** (vulnerable_target; supported)
  - Versions: Any version (unconstrained) (>= 6.2.3, < 6.2.3.16); Any version (unconstrained) (>= 6.3.0, < 6.3.0.6); Any version (unconstrained) (>= 6.4.0, < 6.4.0.10); Any version (unconstrained) (>= 6.5.0, < 6.5.0.5); Any version (unconstrained) (>= 6.6.0, < 6.6.0.1)
  - Canonical identity: `product-0592c4f8ad106ab59a79a9d85898a9bdbd87550fa42008d1f27114d8b94a3910`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*`
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*`
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*`
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*`
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*`

## 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.