CVE-2020-10857

CRITICAL 9.8CVE-2020-10857 · Published 05/02/2021 · updated 17/06/2026

In short

CVE-2020-10857 is a CRITICAL (CVSS 9.8) vulnerability affecting zulip desktop (zulip).
Chance of exploitation in the next 30 days (EPSS): 3.2%, higher than 88.0% of all vulnerabilities.
Fix: update to 5.0.0 or later.

Package	Affected versions	Patched versions
zulip desktop zulip	`< 5.0.0`	`5.0.0`

Zulip Desktop before 5.0.0 improperly uses shell.openExternal and shell.openItem with untrusted content, leading to remote code execution.

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