CVE-2026-53420
highBuffer overflow in a Zoom Phone feature of Zoom Workplace Clients may allow an unauthenticated user to conduct a escalation of privilege via network access.
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.
CVSS
8.0
8.0 (CVSS v3.1)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (security@zoom.us)
Timeline (UTC)
Published: 2026-10-13 15:17
Modified: 2026-10-14 04:18
NVD status: Awaiting Analysis
Last synced 2 days ago
Verified against the source API 2026-10-27 06:59 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://www.zoom.com/en/trust/security-bulletin/zsb-26020 security@zoom.us
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:59 UTC · record ↗