CVE-2026-53414

CVE Enrichment

CVSS: 6.5 MEDIUM
EPSS: 0.36%
EPSS Percentile: 29.42%
CISA KEV: Not listed

Description

Missing bounds check in the annotator function of Zoom Clients allows buffer over-read, which may allow a meeting participant to conduct a denial of service on another participant via network access.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 11-Aug-2026 23:17
Last Modified: 24-Oct-2026 23:10
EPSS Date: 2026-11-09
CWE: CWE-126

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:N /
                            UI:R /
                            S:U /
                            C:N /
                            I:N /
                            A:H

CNA Products / Version Status

Zoom Communications · Zoom Clients Source: CNA · [email protected]
Default status: unaffected

see references — affected (custom)

Platforms: Windows, MacOS, Linux, iOS, Android

References

[email protected]

Last enrichment sync: 10-Nov-2026 10:43
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (2)

Zoom had already shipped fixes in June and July, and the issues are tracked as CVE-2026-53413, CVE-2026-53414, and CVE-2026-53415. Zoom Patched Three Annotation Flaws That Could Enable Meeting-Client Takeover
Additionally, A Security found CVE-2026-53414, another missing bound check in the annotator, which could be exploited to trigger a buffer overread and target any meeting participant with a denial-of-service (DoS) attack. Zoom Patches Zero-Click RCE and Three Other Vulnerabilities

CVE (3)

People (1)

MITRE ATT&CK (1)

Vendors (1)

Products (6)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.