{"id":"CVE-2020-9746","aliases":["EUVD-2020-30526","GHSA-h82h-rg57-cr4v","MGASA-2020-0386","RHSA-2020:4251","UBUNTU-CVE-2020-9746"],"status":"published","title":"Exploitable NULL pointer deref could lead to arbitrary code execution","description":"Adobe Flash Player version 32.0.0.433 (and earlier) are affected by an exploitable NULL pointer dereference vulnerability that could result in a crash and arbitrary code execution. Exploitation of this issue requires an attacker to insert malicious strings in an HTTP response that is by default delivered over TLS/SSL.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.04255,"percentile":0.91135,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2020-10-14T13:17:13Z","modified":"2026-06-29T10:32:16Z","fixes":[{"ecosystem":"Mageia:7","package":"flash-player-plugin","fixed_in":["32.0.0.445-1.mga7.nonfree"],"sources":["osv"]},{"ecosystem":"Red Hat:rhel_extras:6","package":"flash-plugin","fixed_in":["0:32.0.0.445-1.el6_10"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"flashplugin-nonfree","fixed_in":["32.0.0.445ubuntu0.16.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"flashplugin-nonfree","fixed_in":["32.0.0.445ubuntu0.18.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"flashplugin-nonfree","fixed_in":["32.0.0.445ubuntu0.20.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Mageia:7","package":"flash-player-plugin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32.0.0.445-1.mga7.nonfree"}]}]},{"source":"osv","ecosystem":"Red Hat:rhel_extras:6","package":"flash-plugin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:32.0.0.445-1.el6_10"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"flashplugin-nonfree","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32.0.0.445ubuntu0.16.04.1"}]}],"versions":["11.2.202.540ubuntu2","11.2.202.548ubuntu1","11.2.202.554ubuntu1","11.2.202.559ubuntu1","11.2.202.569ubuntu1","11.2.202.577ubuntu1","11.2.202.616ubuntu1","11.2.202.621ubuntu0.16.04.1","11.2.202.626ubuntu0.16.04.1","11.2.202.632ubuntu0.16.04.1","11.2.202.635ubuntu0.16.04.1","11.2.202.637ubuntu0.16.04.1","11.2.202.643ubuntu0.16.04.1","11.2.202.644ubuntu0.16.04.1","24.0.0.186ubuntu0.16.04.1","24.0.0.194ubuntu0.16.04.1","24.0.0.221ubuntu0.16.04.1","25.0.0.127ubuntu0.16.04.1","25.0.0.148ubuntu0.16.04.1","25.0.0.171ubuntu0.16.04.1","26.0.0.126ubuntu0.16.04.1","26.0.0.131ubuntu0.16.04.1","26.0.0.137ubuntu0.16.04.1","26.0.0.151ubuntu0.16.04.1","27.0.0.130ubuntu0.16.04.1","27.0.0.159ubuntu0.16.04.1","27.0.0.170ubuntu0.16.04.1","27.0.0.183ubuntu0.16.04.1","27.0.0.187ubuntu0.16.04.1","28.0.0.126ubuntu0.16.04.1","28.0.0.137ubuntu0.16.04.1","28.0.0.161ubuntu0.16.04.1","29.0.0.113ubuntu0.16.04.1","29.0.0.140ubuntu0.16.04.1","29.0.0.171ubuntu0.16.04.1","30.0.0.113ubuntu0.16.04.1","30.0.0.134ubuntu0.16.04.1","30.0.0.154ubuntu0.16.04.1","31.0.0.108ubuntu0.16.04.1","31.0.0.122ubuntu0.16.04.1","31.0.0.148ubuntu0.16.04.1","31.0.0.153ubuntu0.16.04.1","32.0.0.101ubuntu0.16.04.1","32.0.0.114ubuntu0.16.04.1","32.0.0.142ubuntu0.16.04.1","32.0.0.156ubuntu0.16.04.1","32.0.0.171ubuntu0.16.04.1","32.0.0.192ubuntu0.16.04.1","32.0.0.207ubuntu0.16.04.1","32.0.0.223ubuntu0.16.04.1","32.0.0.238ubuntu0.16.04.1","32.0.0.255ubuntu0.16.04.1","32.0.0.270ubuntu0.16.04.1","32.0.0.293ubuntu0.16.04.1","32.0.0.303ubuntu0.16.04.2","32.0.0.314ubuntu0.16.04.1","32.0.0.330ubuntu0.16.04.1","32.0.0.344ubuntu0.16.04.1","32.0.0.363ubuntu0.16.04.1","32.0.0.371ubuntu0.16.04.1","32.0.0.387ubuntu0.16.04.1","32.0.0.403ubuntu0.16.04.1","32.0.0.414ubuntu0.16.04.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"flashplugin-nonfree","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32.0.0.445ubuntu0.18.04.1"}]}],"versions":["27.0.0.170ubuntu1","27.0.0.187ubuntu1","28.0.0.126ubuntu1","28.0.0.137ubuntu1","28.0.0.161ubuntu1","28.0.0.161ubuntu2","28.0.0.161ubuntu3","29.0.0.113ubuntu1","29.0.0.140ubuntu1","29.0.0.171ubuntu1","30.0.0.113ubuntu0.18.04.1","30.0.0.134ubuntu0.18.04.1","30.0.0.154ubuntu0.18.04.1","31.0.0.108ubuntu0.18.04.1","31.0.0.122ubuntu0.18.04.1","31.0.0.148ubuntu0.18.04.1","31.0.0.153ubuntu0.18.04.1","32.0.0.101ubuntu0.18.04.1","32.0.0.114ubuntu0.18.04.1","32.0.0.142ubuntu0.18.04.1","32.0.0.156ubuntu0.18.04.1","32.0.0.171ubuntu0.18.04.1","32.0.0.192ubuntu0.18.04.1","32.0.0.207ubuntu0.18.04.1","32.0.0.223ubuntu0.18.04.1","32.0.0.238ubuntu0.18.04.1","32.0.0.255ubuntu0.18.04.1","32.0.0.270ubuntu0.18.04.1","32.0.0.293ubuntu0.18.04.1","32.0.0.303ubuntu0.18.04.2","32.0.0.314ubuntu0.18.04.1","32.0.0.330ubuntu0.18.04.1","32.0.0.344ubuntu0.18.04.1","32.0.0.363ubuntu0.18.04.1","32.0.0.371ubuntu0.18.04.1","32.0.0.387ubuntu0.18.04.1","32.0.0.403ubuntu0.18.04.1","32.0.0.414ubuntu0.18.04.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"flashplugin-nonfree","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"32.0.0.445ubuntu0.20.04.1"}]}],"versions":["32.0.0.255ubuntu1","32.0.0.293ubuntu1","32.0.0.303ubuntu1","32.0.0.303ubuntu2","32.0.0.314ubuntu1","32.0.0.330ubuntu1","32.0.0.344ubuntu1","32.0.0.344ubuntu2","32.0.0.363ubuntu1","32.0.0.371ubuntu0.20.04.1","32.0.0.387ubuntu0.20.04.1","32.0.0.403ubuntu0.20.04.1","32.0.0.414ubuntu0.20.04.1"]}],"products":[{"vendor":"adobe","product":"flash player"},{"vendor":"adobe","product":"flash_player"}],"references":[{"url":"https://helpx.adobe.com/security/products/flash-player/apsb20-58.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","web","article","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9746","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-h82h-rg57-cr4v"},{"url":"https://advisories.mageia.org/MGASA-2020-0386.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=27432","tags":["report"]},{"url":"https://access.redhat.com/errata/RHSA-2020:4251","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#critical","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1888018","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_4251.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-9746","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-9746","tags":["advisory","report"]},{"url":"https://ubuntu.com/security/CVE-2020-9746","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-9746","title":"Exploitable NULL pointer deref could lead to arbitrary code execution","description":"Adobe Flash Player version 32.0.0.433 (and earlier) are affected by an exploitable NULL pointer dereference vulnerability that could result in a crash and arbitrary code execution. Exploitation of this issue requires an attacker to insert malicious strings in an HTTP response that is by default delivered over TLS/SSL.","status":"published","published":"2020-10-14T13:17:13.13Z","modified":"2025-04-23T19:47:48.81Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:35:49.538427Z"}],"euvd":[{"id":"EUVD-2020-30526","description":"Adobe Flash Player version 32.0.0.433 (and earlier) are affected by an exploitable NULL pointer dereference vulnerability that could result in a crash and arbitrary code execution. Exploitation of this issue requires an attacker to insert malicious strings in an HTTP response that is by default delivered over TLS/SSL.","status":"published","published":"2020-10-14T13:17:13Z","modified":"2025-04-23T19:47:48Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:05.311873Z"}],"ghsa":[{"id":"GHSA-h82h-rg57-cr4v","title":"Adobe Flash Player version 32.0.0.433 (and earlier) are affected by an exploitable NULL pointer...","description":"Adobe Flash Player version 32.0.0.433 (and earlier) are affected by an exploitable NULL pointer dereference vulnerability that could result in a crash and arbitrary code execution. Exploitation of this issue requires an attacker to insert malicious strings in an HTTP response that is by default delivered over TLS/SSL.","status":"published","published":"2022-05-24T17:30:42Z","modified":"2023-01-29T05:04:51Z","cwes":["CWE-476"],"updated_at":"2026-11-02T14:45:39.24589Z"}],"nvd":[{"id":"CVE-2020-9746","description":"Adobe Flash Player version 32.0.0.433 (and earlier) are affected by an exploitable NULL pointer dereference vulnerability that could result in a crash and arbitrary code execution. Exploitation of this issue requires an attacker to insert malicious strings in an HTTP response that is by default delivered over TLS/SSL.","status":"published","published":"2020-10-14T14:15:17.61Z","modified":"2026-06-17T03:28:30.47Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:06:19.351389Z"}],"osv":[{"id":"RHSA-2020:4251","title":"Red Hat Security Advisory: flash-plugin security update","status":"published","published":"2024-09-13T22:43:05Z","modified":"2026-06-29T10:32:16Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:07.57369Z"},{"id":"UBUNTU-CVE-2020-9746","description":"Adobe Flash Player version 32.0.0.433 (and earlier) are affected by an exploitable NULL pointer dereference vulnerability that could result in a crash and arbitrary code execution. Exploitation of this issue requires an attacker to insert malicious strings in an HTTP response that is by default delivered over TLS/SSL.","status":"published","published":"2020-10-14T14:15:00Z","modified":"2025-07-16T07:41:57.231956Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:25.728622Z"},{"id":"MGASA-2020-0386","title":"Updated flash-player-plugin package fixes security vulnerability","description":"NULL Pointer Dereference that leads to arbitrary code execution in the context\nof the current user. (CVE-2020-9746)\n","status":"published","published":"2020-10-16T15:44:59Z","modified":"2026-04-16T04:42:38.196498998Z","updated_at":"2026-11-02T15:49:41.509337Z"}]}}
