CVE-2025-27439

HIGH

Published Mar 11, 2025 Modified Oct 22, 2025 CWE-124

Description

Buffer underflow in some Zoom Workplace Apps may allow an authenticated user to conduct an escalation of privilege via network access.

CVSS v3.1 Score

8.5

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness Type (CWE)

CWE-124 CWE-124

Affected Products

Vendor	Product	Versions
zoom	meeting_software_development_kit	< 6.3.0
zoom	meeting_software_development_kit	< 6.3.0
zoom	meeting_software_development_kit	< 6.3.0
zoom	meeting_software_development_kit	< 6.3.0
zoom	meeting_software_development_kit	< 6.3.0
zoom	rooms	< 6.3.0
zoom	rooms	< 6.3.0
zoom	rooms	< 6.3.0
zoom	rooms	< 6.3.0
zoom	rooms_controller	< 6.3.0
zoom	rooms_controller	< 6.3.0
zoom	rooms_controller	< 6.3.0
zoom	rooms_controller	< 6.3.0
zoom	workplace	< 6.3.0
zoom	workplace	< 6.3.0
zoom	workplace_desktop	< 6.3.0
zoom	workplace_desktop	< 6.3.0
zoom	workplace_desktop	< 6.3.0
zoom	workplace_virtual_desktop_infrastructure	< 6.1.16
zoom	workplace_virtual_desktop_infrastructure	6.1.17 — 6.2.12

References

Advisories & Patches

https://www.zoom.com/en/trust/security-bulletin/zsb-25011/

Frequently Asked Questions

What is CVE-2025-27439? +

Buffer underflow in some Zoom Workplace Apps may allow an authenticated user to conduct an escalation of privilege via network access. It has a CVSS v3.1 base score of 8.5 (HIGH).

How severe is CVE-2025-27439? +

CVE-2025-27439 has a CVSS v3.1 score of 8.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-27439? +

CVE-2025-27439 affects products from zoom, specifically: meeting_software_development_kit, rooms, rooms_controller, workplace, workplace_desktop, workplace_virtual_desktop_infrastructure. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-27439? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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