CVE-2026-16800
Auth code injection in Devolutions PowerShell Universal schedules allows arbitrary PowerShell execution.
Is CVE-2026-16800 being exploited?
Not confirmed. CVE-2026-16800 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.30% probability of exploitation in the next 30 days.
How severe is CVE-2026-16800?
CVE-2026-16800 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-16800?
Yes. A fix has been recorded for CVE-2026-16800. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-16800 affect?
CVE-2026-16800 affects Devolutions PowerShell Universal <=2026.2.2, PowerShell Universal Server. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-16800?
Upgrade to the fixed version; restrict schedule-creation rights until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated user with schedule-creation permission can execute arbitrary PowerShell on the server, enabling RCE, data exfiltration, and lateral movement.
Immediate action required
- affected< 2026.2.3
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.