{"id":"CVE-2026-102759","state":"PUBLISHED","title":"NetX Secure TLS accepts an empty application-data record without verifying its message authentication code. In `_nx_secure_verify_mac`, a decrypted application record whose length ","description":"NetX Secure TLS accepts an empty application-data record without verifying its message authentication code. In `_nx_secure_verify_mac`, a decrypted application record whose length equals the negotiated MAC size is treated as valid and returns success after advancing the receive sequence number. The received MAC is never generated or compared.\n\n\n\nEmpty TLS application-data records are legal, and are commonly emitted by TLS 1.0 implementations as a BEAST mitigation.","publishedAt":"2026-09-29T17:28:04.461Z","updatedAt":"2026-09-29T21:01:58.130Z","severity":{"score":6.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","source":"eclipse"},"assigner":"eclipse","products":["Eclipse Foundation NetX Duo"],"affected":[{"vendor":"Eclipse Foundation","product":"NetX Duo","packageName":"NetX Duo","defaultStatus":"unaffected","versions":[{"version":"6.2.0","status":"affected","lessThanOrEqual":"6.5.1.202602","versionType":"semver"},{"version":"6.5.2.202603","status":"unaffected"}]}],"references":["https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-m7j3-vh25-xc8p"],"weaknesses":["CWE-354"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/102xxx/CVE-2026-102759.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-102759","state":"PUBLISHED","datePublished":"2026-09-29T17:28:04.461Z","dateUpdated":"2026-09-29T21:01:58.130Z","assignerShortName":"eclipse","assignerOrgId":"e51fbebd-6053-4e49-959f-1b94eeb69a2c","dateReserved":"2026-09-29T16:21:58.818Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"NetX Secure TLS accepts an empty application-data record without verifying its message authentication code. In `_nx_secure_verify_mac`, a decrypted application record whose length equals the negotiated MAC size is treated as valid and returns success after advancing the receive sequence number. The received MAC is never generated or compared.\n\n\n\nEmpty TLS application-data records are legal, and are commonly emitted by TLS 1.0 implementations as a BEAST mitigation."}],"affected":[{"vendor":"Eclipse Foundation","product":"NetX Duo","packageName":"NetX Duo","defaultStatus":"unaffected","versions":[{"version":"6.2.0","status":"affected","lessThanOrEqual":"6.5.1.202602","versionType":"semver"},{"version":"6.5.2.202603","status":"unaffected"}]}],"references":[{"url":"https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-m7j3-vh25-xc8p"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.3,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-354","lang":"en","description":"CWE-354 Improper Validation of Integrity Check Value","type":"CWE"}]}],"providerMetadata":{"shortName":"eclipse","orgId":"e51fbebd-6053-4e49-959f-1b94eeb69a2c","dateUpdated":"2026-09-29T17:28:04.461Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-102759","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-29T20:58:29.779534Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-29T21:01:58.130Z"}}]}}}