HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-115505 — libsmb2 before 6.3 contains integer overflow vulnerabilities in the DCE/RPC NDR ...

·Source: NIST NVD

Updated:

Executive Summary

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.

Analysis

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. CVSS Score: 7.6. Published: 2026-10-22T20:17:06.470.

Indicators of Compromise (1)

CVE (1)
CVE-2026-115505
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Oct 22, 2026. Verified by: NIST.

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