{"cve":"CVE-2020-1968","nvd":{"published":"2020-09-09T14:15:12.507","modified":"2026-06-17T03:02:44.550","status":"Modified","description":"The Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections which have used a Diffie-Hellman (DH) based ciphersuite. In such a case this would result in the attacker being able to eavesdrop on all encrypted communications sent over that TLS connection. The attack can only be exploited if an implementation re-uses a DH secret across multiple TLS connections. Note that this issue only impacts DH ciphersuites and not ECDH ciphersuites. This issue affects OpenSSL 1.0.2 which is out of support and no longer receiving public updates. OpenSSL 1.1.1 is not vulnerable to this issue. Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v).","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","score":3.7},"cwes":["CWE-203"],"references":["https://lists.debian.org/debian-lts-announce/2020/09/msg00016.html","https://security.gentoo.org/glsa/202210-02","https://security.netapp.com/advisory/ntap-20200911-0004/","https://usn.ubuntu.com/4504-1/","https://www.openssl.org/news/secadv/20200909.txt"],"products":["canonical:ubuntu_linux","debian:debian_linux","fujitsu:m10-1_firmware","fujitsu:m10-4_firmware","fujitsu:m10-4s_firmware","fujitsu:m12-1_firmware","fujitsu:m12-2_firmware","fujitsu:m12-2s_firmware","openssl:openssl","oracle:ethernet_switch_es1-24_firmware","oracle:ethernet_switch_es2-64_firmware","oracle:ethernet_switch_es2-72_firmware","oracle:ethernet_switch_tor-72_firmware","oracle:jd_edwards_world_security","oracle:peoplesoft_enterprise_peopletools"],"source":"nvd","synced_at":"2026-10-19T21:09:20.498348299+00:00"},"epss":{"cve":"CVE-2020-1968","score":0.04903,"percentile":0.92097,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}