Vulnerability · Published Oct 13, 2026 · Assigned by Zoom
CVE-2026-53420
High 8.0
In plain English
A high-severity buffer overflow in Zoom Workplace from Zoom Communications. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).
Severity (CVSS 3.1)8.0High
Exploit odds (30 days)0.3%top 75.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Zoom Communications | Zoom Workplace | 0 – before 7.2.0 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H