CVE & CISA-KEV Catalog

CVE-2025-27440

HIGH

8.5

CVSS v3

Description

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

How to fix

Remediation Available

meeting software development kitNVD

Affected:< 6.3.0Fixed in:6.3.0CVE-2025-27440derived from NVD

roomsNVD

Affected:< 6.3.0Fixed in:6.3.0CVE-2025-27440derived from NVD

rooms controllerNVD

Affected:< 6.3.0Fixed in:6.3.0CVE-2025-27440derived from NVD

workplaceNVD

Affected:< 6.3.0Fixed in:6.3.0CVE-2025-27440derived from NVD

workplace desktopNVD

Affected:< 6.3.0Fixed in:6.3.0CVE-2025-27440derived from NVD

workplace virtual desktop infrastructureNVD

Affected:>= 6.1.17, < 6.2.12Fixed in:6.2.12CVE-2025-27440derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.43%probability of exploitation in 30 days

35thpercentile

Low risk: more likely to be exploited than 35% of all known CVEs.

References

Vendor Advisory1

zoom.com

Related Vulnerabilities

Other CWE-124 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-2426	High	8.8	87%	KEV	-
CVE-2023-25610	Critical	9.8	18%	-	Fix
CVE-2018-5388	Medium	6.5	4.0%	-	Fix
CVE-2018-15361	Critical	9.8	2.9%	-	Fix
CVE-2021-36064	High	7.8	2.7%	-	Fix
CVE-2023-48230	Medium	5.9	1.9%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-22.