CVE-2026-53420
HIGHCVSS 8/10
Last modified
CVE-2026-53420 is a high-severity vulnerability rated 8/10 on the CVSS scale. Buffer overflow in a Zoom Phone feature of Zoom Workplace Clients may allow an unauthenticated user to conduct a escalation of privilege via network access..
Description
Buffer overflow in a Zoom Phone feature of Zoom Workplace Clients may allow an unauthenticated user to conduct a escalation of privilege via network access.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Zoom Communications | Zoom Workplace | < 7.2.0 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-53420?
Buffer overflow in a Zoom Phone feature of Zoom Workplace Clients may allow an unauthenticated user to conduct a escalation of privilege via network access.
How severe is CVE-2026-53420?
CVE-2026-53420 has a CVSS score of 8/10 (HIGH severity).
How do I fix CVE-2026-53420?
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.
Related CVEs from 2026
- CVE-2026-53413Missing bounds check in the annotator function of Zoom Clien…8.3
- CVE-2026-53414Missing bounds check in the annotator function of Zoom Clien…6.5
- CVE-2026-53415Use after Free in the annotator function of Zoom Clients may…8.3
- CVE-2026-53416Path traversal in Zoom VDI Client and Plugins may allow an a…7.1
- CVE-2026-53418Improper Authorization in Handler for Custom URL Scheme in Z…8.1
- CVE-2026-5342A flaw has been found in LibRaw up to 0.22.0. This affects t…5.5
- CVE-2026-53421Improper Isolation or Compartmentalization vulnerability in …9.8
- CVE-2026-53422Observable Response Discrepancy vulnerability in Erlang OTP …4.3
- CVE-2026-53423Allocation of Resources Without Limits or Throttling vulnera…5.9
- CVE-2026-53424Authentication Bypass by Capture-replay vulnerability in dro…9.1
- CVE-2026-53425Insufficient Verification of Data Authenticity vulnerability…7.6
- CVE-2026-53426Allocation of Resources Without Limits or Throttling vulnera…8.2
Are you affected by CVE-2026-53420?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
