CVE-2025-27440
Zoom Apps - Heap-based Buffer Overflow
No known exploitation. EPSS puts it in the 36th percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
Heap overflow in some Zoom Workplace Apps may allow an authenticated user to conduct an escalation of privilege via network access.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.4% chance of exploitation activity in the next 30 days, which ranks it in the 36th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
5 events over 471 days, from the signal feeds we watch.
- OpenVAS check added
- Patch availablerecord updated
- Publishedweakness classified
Affected products
- Zoom Workplace App for WindowsCommunications
- Zoom Workplace App for LinuxCommunications
- Zoom Workplace App for macOSCommunications
- Zoom Workplace App for iOSCommunications
- Zoom Workplace App for AndroidCommunications
- Zoom Workplace VDI Client for WindowsCommunications
- Zoom Rooms Controller for WindowsCommunications
- Zoom Rooms Controller for macOSCommunications
- Zoom Workplace AppsCommunications / video-conferencing
- meeting software development kitCommunications / video-conferencing
- roomsCommunications / video-conferencing
- rooms controllerCommunications / video-conferencing
- workplaceCommunications
- workplace desktopConsumer Software / productivity
- workplace virtual desktop infrastructureCommunications
And 11 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Scored 8.5 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity HighRequires specific conditions like a race condition or non-default configuration
- Privileges Required LowRequires basic user-level privileges
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope ChangedThe exploit can affect other components (e.g. sandbox escape, host compromise from VM)
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
Sources
References in the record
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