{"cve":"CVE-2015-2808","nvd":{"published":"2015-04-01T02:00:35.097","modified":"2026-06-17T00:24:47.520","status":"Modified","description":"The RC4 algorithm, as used in the TLS protocol and SSL protocol, does not properly combine state data with key data during the initialization phase, which makes it easier for remote attackers to conduct plaintext-recovery attacks against the initial bytes of a stream by sniffing network traffic that occasionally relies on keys affected by the Invariance Weakness, and then using a brute-force approach involving LSB values, aka the \"Bar Mitzvah\" issue.","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-327"],"references":["http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04779034","http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705","http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10727","http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00013.html","http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00014.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","fujitsu:sparc_enterprise_m3000_firmware","fujitsu:sparc_enterprise_m4000_firmware","fujitsu:sparc_enterprise_m5000_firmware","fujitsu:sparc_enterprise_m8000_firmware","fujitsu:sparc_enterprise_m9000_firmware","huawei:9700_firmware","huawei:e6000_firmware","huawei:e9000_firmware","huawei:oceanstor_18500_firmware","huawei:oceanstor_18800_firmware","huawei:oceanstor_18800f_firmware","huawei:oceanstor_9000_firmware","huawei:oceanstor_cse_firmware","huawei:oceanstor_hvs85t_firmware","huawei:oceanstor_replicationdirector","huawei:oceanstor_s2600t_firmware","huawei:oceanstor_s5500t_firmware","huawei:oceanstor_s5600t_firmware","huawei:oceanstor_s5800t_firmware","huawei:oceanstor_s6800t_firmware","huawei:oceanstor_vis6600t_firmware","huawei:policy_center","huawei:quidway_s9300_firmware","huawei:s12700_firmware","huawei:s2700_firmware","huawei:s2750_firmware","huawei:s3700_firmware","huawei:s5700ei_firmware","huawei:s5700hi_firmware","huawei:s5700li_firmware","huawei:s5700s-li_firmware","huawei:s5700si_firmware","huawei:s5710ei_firmware","huawei:s5710hi_firmware","huawei:s5720ei_firmware","huawei:s5720hi_firmware","huawei:s6700_firmware","huawei:s7700_firmware","huawei:smc2.0","huawei:te60_firmware","huawei:ultravr","ibm:cognos_metrics_manager","opensuse:opensuse","oracle:communications_application_session_controller","oracle:communications_policy_management","oracle:http_server","oracle:integrated_lights_out_manager_firmware","redhat:enterprise_linux_desktop"],"source":"nvd","synced_at":"2026-10-19T20:35:35.528235705+00:00"},"epss":{"cve":"CVE-2015-2808","score":0.73851,"percentile":0.99477,"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."]}