CVE-2026-89635

CVE-2026-89635 is a use-after-free vulnerability in ksmbd , the Linux kernel's SMB server component. In ksmbd_reopen_durable_fd(), when a session reconnects with a durable-v2 handle, the code incorrectly rebinds all detached oplocks on the same inode to the reconnecting session, not just the one ...

Linux Distros Unpatched Vulnerability : CVE-2026-64389

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: validate NTLMv2 response before updating session key ksmbdauthntlmv2 derives the NTLMv2 session key into sess-sesskey before it verifies the NTLMv2...

ANT-2026-M8R2AWBV · linux · other

other high Severity Claude high · Security research firm - · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-M8R2AWBV: ksmbd SMB-Direct: pre-auth remote heap overflow via preferredsendsize signedness mintint Pre-auth remot...

Linux Distros Unpatched Vulnerability : CVE-2026-45924

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: call ksmbdvfskernpathendremoving on some error paths There are two places where ksmbdvfskernpathendremoving needs to be called in order to balance what t...

CVE-2026-8449

No description is available for this CVE...

CVE-2026-8449

Rejected reason: This CVE ID has been rejected or withdrawn...

CVE-2026-8449

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CVE-2026-8449

Affects Linux ksmbd. A remote memory corruption flaw in the ACL inheritance path allows remote clients with directory-creation permissions to trigger a heap out-of-bounds read and subsequent heap corruption by crafting a Malformed SID in a DACL. Exploitation can cause kernel instability and denia...

CVE-2026-8449

This CVE ID has been rejected or withdrawn...

CVE-2026-8449: Undefined Security Weakness

Linux ksmbd contains a remote memory corruption vulnerability in the ACL inheritance path that allows remote clients with directory creation permissions to trigger a heap out-of-bounds read and subsequent heap corruption by setting a crafted DACL with a malformed SID containing an inflated...

Linux Distros Unpatched Vulnerability : CVE-2026-31706

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: validate numaces and harden ACE walk in smbinheritdacl smbinheritdacl trusts the on-disk numaces value from the parent directory's DACL xattr and uses i...

Linux Distros Unpatched Vulnerability : CVE-2026-31432

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix OOB write in QUERYINFO for compound requests When a compound request such as READ + QUERYINFOSecurity is received, and the first command READ consume...

Linux Distros Unpatched Vulnerability : CVE-2025-68786

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: skip lock-range check on equal size to avoid size==0 underflow When size equals the current isize including 0, the code used to call checklockrangefilp,...

Linux Distros Unpatched Vulnerability : CVE-2025-68809

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: vfs: fix race on mflags in vfscache ksmbd maintains delete-on-close and pending-delete state in ksmbdinode-mflags. In vfscache.c this field is accessed...

Linux Distros Unpatched Vulnerability : CVE-2023-32256

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in the Linux kernel's ksmbd component. A race condition between smb2 close operation and logoff in multichannel connections could result in a...

Linux Distros Unpatched Vulnerability : CVE-2025-21955

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: prevent connection release during oplock break notification ksmbdwork could be freed when after connection release. Increment rcount of ksmbdconn to...

Linux Distros Unpatched Vulnerability : CVE-2025-22043

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: add bounds check for durable handle context Add missing bounds check for durable handle context. CVE-2025-22043 Note that Nessus relies on the presence o...

Linux Distros Unpatched Vulnerability : CVE-2025-21945

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix use-after-free in smb2lock If smblock-zerolen has value, -llist of smblock is not delete and flock is old one. It will cause use-after-free on error...

ksmbd SMB2 Session Setup DoS

The vulnerability of the smb2sesssetup function in the fs/smb/server/smb2pdu.c module of the ksmbd component in the Linux operating system lies in the possibility of exploiting memory after it is freed. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

ksmbd expiresession SMB Data Compromise

The vulnerability of the ksmbdexpiresession function in the fs/smb/server/mgmt/usersession.c module, which is part of the SMB Server Message Block networking implementation within the Linux-based ksmbd CIFS/SMB3 server, relates to the reutilization of previously freed memory due to competitive...