{"schema_version":"public-product-v1.1","generated_at":"2026-07-21T11:03:50Z","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","advisory":{"id":"cisco-sa-aci-cloudsec-enc-Vs5Wn2sX","slug":"cisco-sa-aci-cloudsec-enc-vs5wn2sx","vendor":"Cisco","title":"Cisco ACI Multi-Site CloudSec Encryption Information Disclosure Vulnerability","summary":"A vulnerability in the Cisco ACI Multi-Site CloudSec encryption feature of Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, remote attacker to read or modify intersite encrypted traffic. This vulnerability is due to an issue with the implementation of the ciphers that are used by the CloudSec encryption feature on affected switches. An attacker with an on-path position between the ACI sites could exploit this vulnerability by intercepting intersite encrypted traffic and using cryptanalytic techniques to break the encryption. A successful exploit could allow the attacker to read or modify the traffic that is transmitted between the sites. Cisco has deprecated and removed the ACI Multi-Site CloudSec encryption feature that is affected by this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aci-cloudsec-enc-Vs5Wn2sX","severity":"High","published_at":"2023-07-05T16:00:00Z","updated_at":"2026-04-24T13:05:36Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aci-cloudsec-enc-Vs5Wn2sX","csaf_url":"https://sec.cloudapps.cisco.com/security/center/contentjson/CiscoSecurityAdvisory/cisco-sa-aci-cloudsec-enc-Vs5Wn2sX/csaf/cisco-sa-aci-cloudsec-enc-Vs5Wn2sX.json","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure."},"freshness":{"last_source_refreshed_at":"2026-07-21T05:16:34Z","latest_source_refresh_at":"2026-07-21T05:16:34Z","oldest_source_refresh_at":"2026-07-21T03:00:03Z","all_sources_fresh":true,"sources":[{"source":"cisco_advisories","label":"Cisco advisories","last_success_at":"2026-07-21T03:00:03Z","stale":false},{"source":"cisco_csaf","label":"Cisco CSAF","last_success_at":"2026-07-21T05:14:24Z","stale":false},{"source":"nvd_cves","label":"NVD CVEs","last_success_at":"2026-07-21T05:16:30Z","stale":false},{"source":"cisa_kev","label":"CISA KEV","last_success_at":"2026-07-21T05:16:31Z","stale":false},{"source":"first_epss","label":"EPSS","last_success_at":"2026-07-21T05:16:34Z","stale":false}]},"summary":{"cve_count":1,"visible_product_count":1,"public_evidence_count":1,"kev_count":0,"highest_epss":0.00346},"cves":[{"id":"CVE-2023-20185","kev":false,"epss":{"score":0.00346,"percentile":0.26905,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"}}],"public_evidence":[{"product":{"name":"Cisco Nexus 9000 Series Switches","slug":"cisco-nexus-9000-series-switches","vendor":"Cisco"},"cve":{"id":"CVE-2023-20185"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T04:21:41Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco NX-OS System Software in ACI Mode 14.0(1h) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.0(2c) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.0(3c) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.0(3d) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.1(1i) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.1(1j) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.1(1k) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.1(1l) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.1(2g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.1(2m) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.1(2o) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.1(2s) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.1(2u) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.1(2w) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.1(2x) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(1i) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(1j) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(1l) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(2e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(2f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(2g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(3j) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(3l) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(3n) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(3q) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(4i) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(4k) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(4o) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(4p) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(5k) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(5l) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(5n) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(6d) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(6g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(6h) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(6l) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(6o) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(7f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(7l) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(7q) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(7r) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(7s) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(7t) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(7u) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(7v) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 14.2(7w) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.0(1k) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.0(1l) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.0(2e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.0(2h) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.1(2e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.1(3e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.1(4c) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(1g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(2e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(2f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(2g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(2h) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(3e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(3f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(3g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(4d) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(4e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(4f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(5c) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(5d) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(5e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(6e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(6g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(6h) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(7f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(7g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(8d) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(8e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(8f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(8g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(8h) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.2(8i) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.3(1d) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.3(2a) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.3(2b) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.3(2c) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.3(2d) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.3(2e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 15.3(2f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(1g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(1j) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(2h) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(2j) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(3d) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(3e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(3g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(4c) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(5h) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(5j) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(6c) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(6h) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(7e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(8e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(8f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(8h) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(9c) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(9d) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(9e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.0(9f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.1(1f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.1(2f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.1(2g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.1(3f) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.1(3g) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.1(4h) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.1(5e) when installed on Cisco Nexus 9000 Series Switches; Cisco NX-OS System Software in ACI Mode 16.2(1g) when installed on Cisco Nexus 9000 Series Switches","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.00346,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:34Z"},"published_at":"2023-07-05T16:00:00Z","updated_at":"2026-04-24T13:05:36Z","advisory_updated_at":"2026-04-24T13:05:36Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aci-cloudsec-enc-Vs5Wn2sX","remediation":{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aci-cloudsec-enc-Vs5Wn2sX"},"row_display_order":1}]}