CVE-2026-83789

HighCVSS 8.8/10Last modified Oct 16, 2026

Description

Heap-based buffer overflow in Windows SMB Client allows an unauthorized attacker to elevate privileges over a network.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-122

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Oct 13, 2026
Last modified
Oct 16, 2026
NVD status
Undergoing Analysis

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CVE-2026-83789: High severity, CVSS 8.8 | Vulnix