{"id":"CVE-2020-10857","aliases":["EUVD-2020-3263","GHSA-7fjh-g2fp-mqf5"],"status":"published","title":"Zulip Desktop before 5.0.0 improperly uses shell.openExternal and shell.openItem with untrusted...","description":"Zulip Desktop before 5.0.0 improperly uses shell.openExternal and shell.openItem with untrusted content, leading to remote code execution.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.0317,"percentile":0.88192,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-02-05T19:16:26Z","modified":"2026-06-17T02:48:34Z","products":[{"vendor":"zulip","product":"zulip_desktop"}],"references":[{"url":"https://blog.zulip.com/2020/04/01/zulip-desktop-5-0-0-security-release/","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-10857"},{"url":"https://github.com/advisories/GHSA-7fjh-g2fp-mqf5"}],"sources":{"cve":[{"id":"CVE-2020-10857","description":"Zulip Desktop before 5.0.0 improperly uses shell.openExternal and shell.openItem with untrusted content, leading to remote code execution.","status":"published","published":"2021-02-05T19:16:26Z","modified":"2024-08-04T11:14:15.67Z","updated_at":"2026-11-02T14:35:47.877975Z"}],"euvd":[{"id":"EUVD-2020-3263","description":"Zulip Desktop before 5.0.0 improperly uses shell.openExternal and shell.openItem with untrusted content, leading to remote code execution.","status":"published","published":"2021-02-05T19:16:26Z","modified":"2024-08-04T11:14:15Z","updated_at":"2026-11-03T03:07:48.918317Z"}],"ghsa":[{"id":"GHSA-7fjh-g2fp-mqf5","title":"Zulip Desktop before 5.0.0 improperly uses shell.openExternal and shell.openItem with untrusted...","description":"Zulip Desktop before 5.0.0 improperly uses shell.openExternal and shell.openItem with untrusted content, leading to remote code execution.","status":"published","published":"2022-05-24T17:41:10Z","modified":"2023-01-29T05:05:36Z","updated_at":"2026-11-02T14:45:49.842411Z"}],"nvd":[{"id":"CVE-2020-10857","description":"Zulip Desktop before 5.0.0 improperly uses shell.openExternal and shell.openItem with untrusted content, leading to remote code execution.","status":"published","published":"2021-02-05T20:15:12.933Z","modified":"2026-06-17T02:48:34.103Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:06:34.188486Z"}]}}