CVE-2026-115505
7.6 HIGHpublic exploit availablePublished 2026-10-22 · Updated 2026-10-23
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Weaknesses
CWE-190
Public exploit & PoC references
All references
- https://github.com/sahlberg/libsmb2
- https://github.com/sahlberg/libsmb2/commit/a79f6914cb5ed3f74293d15cdea901261ce179ff
- https://github.com/sahlberg/libsmb2/issues/496
- https://github.com/sahlberg/libsmb2/releases/tag/libsmb2-6.3
- https://hackmd.io/@haindpwn/libsmb2-dcerpc-ndr-count-overflow-oob
- https://www.vulncheck.com/advisories/libsmb2-before-6.3-integer-overflow-in-dce-rpc-ndr-decoder-via-netrshareenum
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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