CVE-2025-27439
HIGHCVSS 8.8/10EPSS 0.41%
Last modified
CVE-2025-27439 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Buffer underflow in some Zoom Workplace Apps may allow an authenticated user to conduct an escalation of privilege via network access.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.
Description
Buffer underflow in some Zoom Workplace Apps may allow an authenticated user to conduct an escalation of privilege via network access.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zoom | Meeting Software Development Kit | < 6.3.0 |
| Zoom | Rooms | < 6.3.0 |
| Zoom | Rooms Controller | < 6.3.0 |
| Zoom | Workplace | < 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
- https://www.zoom.com/en/trust/security-bulletin/zsb-25011/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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.
How severe is CVE-2025-27439?
CVE-2025-27439 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.
How do I fix CVE-2025-27439?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2025-27439?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST