high
advisory
libsmb2: Integer overflow in DCE/RPC NDR decoder (CVE-2026-115505)
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.
CVE search metadata
CVE search record: CVE-2026-115505. Severity: high. CVSS: 7.6. KEV: no. Product: libsmb2 (< 6.3). Brief: libsmb2: Integer overflow in DCE/RPC NDR decoder (CVE-2026-115505). Brief link: https://feed.craftedsignal.io/briefs/2026-10-libsmb2-integer-overflow/
Triage facts
Revision 1- Applicability
- libsmb2 (< 6.3)
- Evidence
- Unknown
- Severity
- High
- Sources
- 1 public source
- Freshness
- Revision 1Oct 22, 22:31 UTC
- Vulnerabilities
- 1 CVE
- Source quality
- A2Roughly even chance
libsmb2 before 6.3 contains integer overflow vulnerabilities in the DCE/RPC NDR decoder in lib/dcerpc.c. 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.