{"id":"CVE-2018-16870","details":"It was found that wolfssl before 3.15.7 is vulnerable to a new variant of the Bleichenbacher attack to perform downgrade attacks against TLS. This may lead to leakage of sensible data.","modified":"2026-03-14T01:39:12.427039Z","published":"2019-01-03T16:29:00.227Z","references":[{"type":"ADVISORY","url":"http://cat.eyalro.net/"},{"type":"FIX","url":"https://github.com/wolfSSL/wolfssl/pull/1950"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wolfssl/wolfssl","events":[{"introduced":"0"},{"fixed":"a7350b7d2ed15648443253cb39ad9195df184139"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"3.15.7"}]}}],"versions":["WCv4-rng-stable","WCv4-stable","WCv4.0-RC5","WCv4.0-RC6","WCv4.0-RC8","WCv4.0-RC9","l","v0.5","v1.8.8.0","v1.9.0","v2.0.2","v2.0.3","v2.0.6","v2.0.8","v2.0rc1","v2.0rc2","v2.0rc2b","v2.0rc3","v2.1.1","v2.1.2","v2.1.4","v2.2.0","v2.2.1","v2.2.2","v2.3.0","v2.4.0","v2.4.2","v2.4.6","v2.4.7","v2.5.0","v2.5.2","v2.5.2b","v2.6.0","v2.6.2","v2.7.0","v2.7.2","v2.8.0","v2.8.2","v2.8.3","v2.8.4","v2.8.5","v2.8.5a","v2.8.6","v2.9.0","v2.9.1","v2.9.2","v2.9.4","v3.0.0","v3.0.2","v3.1.0","v3.10.0-stable","v3.10.0a","v3.10.2-stable","v3.10.3","v3.10.4","v3.11.0-stable","v3.11.1-tls13-beta","v3.12.0-stable","v3.12.2-stable","v3.13.0-stable","v3.13.2","v3.13.3","v3.14.0-stable","v3.14.0a","v3.14.0b","v3.14.2","v3.14.4","v3.14.5","v3.15.0-stable","v3.15.3-stable","v3.15.5-stable","v3.15.5a","v3.15.6","v3.2.0","v3.2.4","v3.2.6","v3.3.0","v3.3.3","v3.4.0","v3.4.2","v3.4.6","v3.4.8","v3.6.0","v3.6.0b","v3.6.2","v3.6.6","v3.6.8","v3.6.9","v3.6.9b","v3.6.9c","v3.6.9d","v3.69.d","v3.7.0","v3.7.1","v3.7.3","v3.8.0","v3.9.0","v3.9.1","v3.9.10-stable","v3.9.10b","v3.9.6","v3.9.6w","v3.9.8"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16870.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}