CVE-2026-115505

Publié : 22 octobre 2026

Modifié : 22 octobre 2026

Score CVSS

7.6

HIGH

Description détaillée

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.

Vecteur d'attaque (CVSS)

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

Références et Patchs

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

Dernières Vulnérabilités

CVE-2026-97785

Improper authentication in AAD App Proxy allows an unauthorized attacker to elevate privileges over a network.

VOIR DÉTAILS

CVE-2026-96616

Authentication tokens issued by the E3's web management interface on login are given an expiration time far beyond any reasonable session lifetime, effectively making them non-expiring. A token obtained through interception or device compromise remains valid for authenticated access for an extended period.

VOIR DÉTAILS

CVE-2026-96185

Stack-based buffer overflow in Microsoft Exchange Online allows an authorized attacker to execute code over a network.

VOIR DÉTAILS