{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-35019: NetComm NF20MESH < R6B032 Hardcoded AES Key Authentication Bypass","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-35019","status":"final","version":"1","initial_release_date":"2026-06-23T13:48:49.972Z","current_release_date":"2026-06-23T15:11:17.525Z","revision_history":[{"date":"2026-06-23T13:48:49.972Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"NetComm NF20MESH routers running firmware R6B031 and earlier contain an authentication bypass vulnerability that allows unauthenticated attackers to gain administrative access by exploiting a hardcoded AES-256 key used to encrypt session cookies for the web management interface. Attackers can forge a valid encrypted session cookie using the shared hardcoded key and bypass authentication checks to obtain full administrative control of the management interface while any legitimate administrator session is active.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-35019 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-35019"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-35019"},{"category":"external","summary":"signal11.io","url":"https://signal11.io/advisories/netcomm-nf20-mesh-authentication-bypass"},{"category":"external","summary":"support.netcommwireless.com","url":"https://support.netcommwireless.com/api/Media/Firmware/4407c21d-e990-49a4-9754-b72475f20c76?Product=NF20MESH%20Release%20Notes.pdf"},{"category":"external","summary":"support.netcommwireless.com","url":"https://support.netcommwireless.com/products/nf20mesh#Firmware"},{"category":"external","summary":"vulncheck.com","url":"https://www.vulncheck.com/advisories/netcomm-nf20mesh-r6b032-hardcoded-aes-key-authentication-bypass"}]},"product_tree":{"branches":[{"category":"vendor","name":"NetComm Wireless Pty Ltd","branches":[{"category":"product_name","name":"NF20MESH","branches":[{"category":"product_version_range","name":"<R6B032","product":{"name":"NetComm Wireless Pty Ltd NF20MESH <R6B032","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:netcomm_wireless_pty_ltd:nf20mesh:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-35019","title":"NetComm NF20MESH < R6B032 Hardcoded AES Key Authentication Bypass","notes":[{"category":"description","text":"NetComm NF20MESH routers running firmware R6B031 and earlier contain an authentication bypass vulnerability that allows unauthenticated attackers to gain administrative access by exploiting a hardcoded AES-256 key used to encrypt session cookies for the web management interface. Attackers can forge a valid encrypted session cookie using the shared hardcoded key and bypass authentication checks to obtain full administrative control of the management interface while any legitimate administrator session is active.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v4":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","baseScore":9.2,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: R6B032.","product_ids":["CSAFPID-1"],"url":"https://support.netcommwireless.com/api/Media/Firmware/4407c21d-e990-49a4-9754-b72475f20c76?Product=NF20MESH%20Release%20Notes.pdf"}]}]}