Unity Linux 20.1060e / 20.1070e Security Update: samba (UTSA-2026-017353)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017353 advisory. The Samba AD DC includes checks when adding service principals names SPNs to an account to ensure that SPNs do not alias with those already in the database. Some of...

Unity Linux 20.1060e / 20.1070e Security Update: samba (UTSA-2026-017367)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017367 advisory. Samba does not validate the Validated-DNS-Host-Name right for the dNSHostName attribute which could permit unprivileged users to write it. Tenable has extracted the...

CVE-2026-43379

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smblazyparentleasebreakclose opinfo pointer obtained via rcudereferencefp-fopinfo is being accessed after rcureadunlock has been called. This creates a race condition where the memory could be freed b...

CVE-2026-43379

CVE-2026-43379 affects ksmbd (Linux kernel) with a use-after-free in smb_lazy_parent_lease_break_close. The opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is accessed after rcu_read_unlock(), creating a race where the memory could be freed by a concurrent writer before subsequent de...

CVE-2026-43379

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smblazyparentleasebreakclose opinfo pointer obtained via rcudereferencefp-fopinfo is being accessed after rcureadunlock has been called. This creates a race condition where the memory could be freed b...

UBUNTU-CVE-2026-43350

In the Linux kernel, the following vulnerability has been resolved: smb: client: require a full NFS mode SID before reading mode bits parsedacl treats an ACE SID matching sidunixNFSmode as an NFS mode SID and reads sid.subauth2 to recover the mode bits. That assumes the ACE carries three...

CLSA-2026-1778176200 samba: Fix of CVE-2017-15275

CVE-2017-15275: Fix server heap memory information leak by zeroing unused area when messagepushstring grows the talloc buffer...

CVE-2026-43185

A flaw was found in ksmbd within the Linux kernel. A remote attacker can exploit a signedness bug in the smbdirectpreparenegotiation function by sending a specially crafted preferredsendsize value during SMB direct negotiation. This manipulation leads to an incorrect size calculation, allowing a...

CVE-2026-43239

In the Linux kernel, the following vulnerability has been resolved: smb: client: prevent races in -queryinterfaces It was possible for two query interface works to be concurrently trying to update the interfaces. Prevent this by checking and updating ifacelastupdate under ifacelock...

CVE-2026-43185

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix signededness bug in smbdirectpreparenegotiation smbdirectpreparenegotiation casts an unsigned u32 value from sp-maxrecvsize and req-preferredsendsize to a signed int before computing mintint, .... A maliciously provide...

CVE-2026-3120

Improper Control of Generation of Code 'Code Injection' vulnerability in Profelis Information and Consulting Trade and Industry Limited Company SambaBox allows OS Command Injection. This issue affects SambaBox: from 5.1 before 5.3...

Linux Distros Unpatched Vulnerability : CVE-2026-31704

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: use checkaddoverflow to prevent u16 DACL size overflow setposixaclentriesdacl and setntacldacl accumulate ACE sizes in u16 variables. When a file has man...

CVE-2026-31718

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbdclosefd via durable scavenger When a durable file handle survives session disconnect TCP close without SMB2LOGOFF, sessionfdcheck sets fp-conn = NULL to preserve the handle for later reconnection...

CVE-2026-31718

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbdclosefd via durable scavenger When a durable file handle survives session disconnect TCP close without SMB2LOGOFF, sessionfdcheck sets fp-conn = NULL to preserve the handle for later reconnection...

CVE-2026-31711

CVE-2026-31711 concerns the Linux kernel ksmbd server where a leak of active_num_conn occurs during transport allocation failure. The issue lets an unauthenticated remote attacker exacerbate memory pressure by holding connections with large RFC1002 lengths, causing the max_connections pool to be ...

EUVD-2026-26515

In the Linux kernel, the following vulnerability has been resolved: 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 it to size a heap allocation: acesbase = kmallocsizeofstruct smbace...

CVE-2026-31706 ksmbd: validate num_aces and harden ACE walk in smb_inherit_dacl()

In the Linux kernel, the following vulnerability has been resolved: 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 it to size a heap allocation: acesbase = kmallocsizeofstruct smbace...

EUVD-2026-26513

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use checkaddoverflow to prevent u16 DACL size overflow setposixaclentriesdacl and setntacldacl accumulate ACE sizes in u16 variables. When a file has many POSIX ACL entries, the accumulated size can wrap past 65535, causin...

Linux Distros Unpatched Vulnerability : CVE-2026-31538

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: smb: server: make use of smbdirectsocket.recvio.credits.available The logic off managing rec...

CVE-2026-31255

A command injection vulnerability exists in Tenda AC18 V15.03.05.05multi. The vulnerability is located in the /goform/SetSambaCfg interface, where improper handling of the guestuser parameter allows attackers to execute arbitrary system commands...