{"cve":{"cve_id":"CVE-2020-6096","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.05477,"epss_percentile":0.92653,"epss_as_of":"2026-10-15","description":"An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000. Calling memcpy() (on ARMv7 targets that utilize the GNU glibc implementation) with a negative value for the 'num' parameter results in a signed comparison vulnerability. If an attacker underflows the 'num' parameter to memcpy(), this vulnerability could lead to undefined behavior such as writing to out-of-bounds memory and potentially remote code execution. Furthermore, this memcpy() implementation allows for program execution to continue in scenarios where a segmentation fault or crash should have occurred. The dangers occur in that subsequent execution and iterations of this code will be executed with this corrupted data.","published_at":"2020-04-01T00:00:00Z","last_modified_at":"2026-10-14T09:17:19.140000Z","cvss_v3_score":8.1,"cvss_v3_vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"none","ssvc_automatable":false,"ssvc_technical_impact":"total","cwes":["CWE-195"],"nvd_references":["https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/URXOIA2LDUKHQXK4BE55BQBRI6ZZG3Y6/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPYXTDOOB4PQGTYAMZAZNJIB3FF6YQXI/","https://security.gentoo.org/glsa/202101-20","https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E","https://sourceware.org/bugzilla/show_bug.cgi?id=25620","https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1019","https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html"],"vuln_status":"Modified","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-10-14T23:59:09.254433Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.0","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"H","value_label":"High"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"debian","vendor_name":"Debian","product_slug":"debian-linux","product_name":"debian_linux","version_start":"10.0","version_start_inclusive":true,"version_end":"10.0","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"},{"vendor_slug":"fedoraproject","vendor_name":"fedoraproject","product_slug":"fedora","product_name":"fedora","version_start":"31","version_start_inclusive":true,"version_end":"31","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"},{"vendor_slug":"fedoraproject","vendor_name":"fedoraproject","product_slug":"fedora","product_name":"fedora","version_start":"32","version_start_inclusive":true,"version_end":"32","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"},{"vendor_slug":"gnu","vendor_name":"gnu","product_slug":"glibc","product_name":"glibc","version_start":null,"version_start_inclusive":null,"version_end":"2.31","version_end_inclusive":true,"cpe23_uri":"cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/URXOIA2LDUKHQXK4BE55BQBRI6ZZG3Y6/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPYXTDOOB4PQGTYAMZAZNJIB3FF6YQXI/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://security.gentoo.org/glsa/202101-20","source_type":"MISC","tags":[]},{"url":"https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=25620","source_type":"MISC","tags":[]},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1019","source_type":"MISC","tags":[]},{"url":"https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html","source_type":"MAILING_LIST","tags":["mailing-list"]}],"timeline":[{"type":"published","at":"2020-04-01T00:00:00Z","label":"CVE published","source":null},{"type":"ssvc_changed","at":"2026-06-24T00:31:35.223313Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:35.223313Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-24T00:31:35.223313Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:35.223313Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:35.223313Z","label":"CVSS score revised","source":"vulnrichment"},{"type":"cvss_changed","at":"2026-06-24T00:31:35.223313Z","label":"CVSS score revised","source":"vulnrichment"}]}