CVE-2026-53413

HIGH

Zoom Clients - Buffer Over-write

Title source: CVE List
Search associated code STIX 2.1 vulnerability STIX 2.1 with PoCs

Record summary

CVE-2026-53413 has a selected CVSS score of 8.3 (high); EIP currently links 1 repository PoC.

Description

Missing bounds check in the annotator function of Zoom Clients allows buffer over-write, which may allow a meeting participant to achieve remote code execution of another participant via network access.

Description source: CVE List

Exploitation context

Available material

Repository PoCs
1

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactTotal

CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 11, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Zoom Clients

Browse Zoom Communications / Zoom Clients

Default status: unaffected

CVE Listsee referencesaffected

Proofs of concept

1

Repository PoCs

GitHubHORKimhab/CVE-2026-68820Repository PoCby HORKimhab1Not analyzed3 files

6.0 KiB · linked to 2 vulnerabilities

GitHub
PoC details

References

2