RCE in widely deployed Zoom Node MMRs; could allow full device takeover and network access, impacting enterprise deployments.
CVE-2026-22844
RCE via command injection on Zoom Node MMRs before 5.2.1716.0
Is CVE-2026-22844 being exploited?
Not confirmed. CVE-2026-22844 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 13% probability of exploitation in the next 30 days.
How severe is CVE-2026-22844?
CVE-2026-22844 is rated Critical with a CVSS score of 9.9. 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-2026-22844?
Yes. A fix has been recorded for CVE-2026-22844. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-22844 affect?
CVE-2026-22844 affects Zoom Node Multimedia Routers (MMRs) <5.2.1716.0. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-22844?
Update to 5.2.1716.0+ firmware; enforce network ACLs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution over the network by a meeting participant targeting Zoom Node MMRs.
Immediate action required
- affected< 5.2.1716.0
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.