CVE-2026-115505

Published: Ott 22, 2026 Last Modified: Ott 22, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,2
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: passive
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 7,6
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: high

Description

AI Translation Available

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.

190

Integer Overflow or Wraparound

Stable
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality Access Control Other
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Memory) Dos: Instability Modify Memory Execute Unauthorized Code Or Commands Bypass Protection Mechanism Alter Execution Logic Dos: Resource Consumption (Cpu)
Applicable Platforms
Languages: Not Language-Specific, C
View CWE Details
https://github.com/sahlberg/libsmb2
https://github.com/sahlberg/libsmb2/commit/a79f6914cb5ed3f74293d15cdea901261ce1…
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…