Zoom Node: Schwachstelle ermöglicht Codeausführung
WID-SEC-2026-0186 · first 22.01.2026 · updated 22.01.2026 · CVSS 9,9
What it is about
Zoom Node ist eine lokale Softwarelösung, die bestimmte Zoom-Funktionen innerhalb eines Netzwerks hostet, um Bandbreite zu optimieren und die Meeting-Qualität zu verbessern. Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Zoom Node ausnutzen, um beliebigen Programmcode auszuführen.
Under what conditions?
Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.
What can happen in the worst case
An attacker could use the vulnerability to
- beliebigen Programmcode auszuführen
Am I affected?
Affected according to the BSI:
- Zoom Node Meetings Hybrid (ZMH) MMR <5.2.1716.0
- Zoom Node Meeting Connector (MC) MMR (ZMH) MMR <5.2.1716.0
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Zoom Node Meetings Hybrid (ZMH) MMR 5.2.1716.0
- Zoom Node Meeting Connector (MC) MMR (ZMH) MMR 5.2.1716.0
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Zoom Security Bulletin ZSB-26001 vom 2026-01-20 www.zoom.com
- PoC CVE-2026-22844 vom 2026-01-22 github.com
CVE: CVE-2026-22844
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.