CVE-2026-115505

HighCVSS 7.6/10Last modified Oct 23, 2026

Description

libsmb2 before 6.3 contains integer overflow vulnerabilities in the DCE/RPC NDR decoder in lib/dcerpc.c that allow heap out-of-bounds reads and writes. A malicious SMB server or machine-in-the-middle on unsigned connections can send crafted NetrShareEnum replies with wrapping actual_count or max_count values when clients call smb2_share_enum_async(), corrupting heap memory.

Metrics

CVSS 3.1 7.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

Weakness enumeration

CWE-190

Affected software

No affected versions have been published.

Timeline

Published: Oct 22, 2026
Last modified: Oct 23, 2026
NVD status: Deferred

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