How severe is CVE-2026-22844?

CVE-2026-22844 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-22844 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-22844?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-22844 have an EU (EUVD) identifier?

Yes. CVE-2026-22844 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3437.

When was CVE-2026-22844 published?

CVE-2026-22844 was published on 2026-01-20 and last updated on 2026-06-17.

CVE-2026-22844

CVE-2026-22844 is a critical-severity vulnerability with a CVSS 3.x base score of 9.9. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3437
Weakness: CWE-78
Published: 2026-01-20
Last modified: 2026-06-17

Description

A Command Injection vulnerability in Zoom Node Multimedia Routers (MMRs) before version 5.2.1716.0 may allow a meeting participant to conduct remote code execution of the MMR via network access.

Frequently asked questions

What is CVE-2026-22844?: A Command Injection vulnerability in Zoom Node Multimedia Routers (MMRs) before version 5.2.1716.0 may allow a meeting participant to conduct remote code execution of the MMR via network access.
How severe is CVE-2026-22844?: CVE-2026-22844 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-22844 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-22844?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-22844 have an EU (EUVD) identifier?: Yes. CVE-2026-22844 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3437.
When was CVE-2026-22844 published?: CVE-2026-22844 was published on 2026-01-20 and last updated on 2026-06-17.

References

https://www.zoom.com/en/trust/security-bulletin/zsb-26001

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