CVE-2026-68388

CVE-2026-68388 (Linux kernel SMB client): The smb3_simple_fallocate_range() path can mis-handle allocated ranges returned by the server, causing holes to be skipped and writes to fail with ENOSPC. The issue arises when a server-provided allocated range overlaps the current fallocate offset and st...

EUVD-2026-55444

In the Linux kernel, the following vulnerability has been resolved: smb: client: validate DFS referral PathConsumed parsedfsreferrals validates that the response contains the fixed referral entry array and, on for-next, the per-referral string offsets. However, the response also contains a...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: smb: client: fixed potential UAF and double-free errors in smb2openfile Set @erriov and @errbuftype to zero before retrying SMB2open, to prevent UAF bugs if @data != NULL; otherwise, a double-free error will occur...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: A use-after-free issue was fixed in ksmbdsessionrpcopen. A UAF Use-After-Free issue may occur due to a race condition between ksmbdsessionrpcopen and sessionrpcclose. Adding a rpclock to the session can help protect it...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: smb: client: The split caching of bitfields in cachedfid was introduced to avoid race conditions involving shared-byte registers. The functions isopen, haslease, and onlist are stored in the same bitfield byte within the struc...

CVE-2026-54206

Tobit Laboratories AG TeamDavid's Webbox 's sending email, fax, SMS, etc. functionality accepts a @@INCLUDE command, which can be set to network locations using UNC paths e.g., “\Server\Share”. The server processes these paths without validation, resulting in outbound connection attempts to...

CVE-2026-54204

Tobit Laboratories AG TeamDavid's Webbox 's search functionality accepts a “pathnameroot” parameter, which can be set to network locations using UNC paths e.g., “\Server\Share”. The server processes these paths without validation, resulting in outbound connection attempts to attacker-controlled...

EUVD-2026-54450

Tobit Laboratories AG TeamDavid's Webbox 's link storing functionality //ServerClientcelink.htm accepts a “pathname” parameter, which can be set to network locations using UNC paths e.g., “\Server\Share”. The server processes these paths without validation, resulting in outbound connection...

EUVD-2026-54438

Tobit Laboratories AG TeamDavid's Webbox 's move archive functionality “!ArcEntryMove” accepts an arbitrary path, which can be set to network locations using UNC paths e.g., “\Server\Share”. The server processes these paths without validation, resulting in outbound connection attempts to...

CVE-2026-54207

CVE-2026-54207 affects Tobit TeamDavid’s Webbox move-archive feature (ArcEntryMove). The function accepts an arbitrary path, including UNC network paths like \Server\Share, which the server processes without validation. This can trigger outbound connections to attacker-controlled SMB servers, all...

CVE-2026-54207 TeamDavid: Server-Side Request Forgery (SSRF) via 'pathname' parameter in move archive functionality

Tobit Laboratories AG TeamDavid's Webbox 's move archive functionality “!ArcEntryMove” accepts an arbitrary path, which can be set to network locations using UNC paths e.g., “\Server\Share”. The server processes these paths without validation, resulting in outbound connection attempts to...

CVE-2026-54207

Tobit Laboratories AG TeamDavid's Webbox 's move archive functionality “!ArcEntryMove” accepts an arbitrary path, which can be set to network locations using UNC paths e.g., “\Server\Share”. The server processes these paths without validation, resulting in outbound connection attempts to...

CVE-2026-54206

CVE-2026-54206 affects Tobit Laboratories AG TeamDavid’s Webbox. The issue is a server-side inclusion/SSRF via the pathname parameter in the sending functionality, which can be set to UNC paths (e.g., \Server\Share). The server processes these paths without validation, causing outbound connection...

CVE-2026-54206 TeamDavid: Server-Side Request Forgery (SSRF) via 'pathname' parameter in sending functionality

Tobit Laboratories AG TeamDavid's Webbox 's sending email, fax, SMS, etc. functionality accepts a @@INCLUDE command, which can be set to network locations using UNC paths e.g., “\Server\Share”. The server processes these paths without validation, resulting in outbound connection attempts to...

SUSE CVE-2026-64597

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2close replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2closeinit fails before the next send, cleanup retains the previous buffer type and fre...

CVE-2026-64578

A flaw was found in ksmbd, a Linux kernel module that provides an in-kernel SMB3 server. A remote attacker could exploit this vulnerability by crafting a malicious compound SMB2 request. This improper validation of the request size before reading specific data could lead to an out-of-bounds read,...

UBUNTU-CVE-2026-64597

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2close replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2closeinit fails before the next send, cleanup retains the previous buffer type and fre...

UBUNTU-CVE-2026-64598

In the Linux kernel, the following vulnerability has been resolved: smb/client: Fix error code in smb2aeadreqalloc The "numsgs" variable is a u32 so "ERRPTRnumsgs" doesn't work. We would have to do something similar to the previous line where it's cast to int and then long. However, it's simpler ...

CVE-2026-64597 smb: client: fix double-free in SMB2_close() replay

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2close replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2closeinit fails before the next send, cleanup retains the previous buffer type and fre...

CVE-2026-64598 smb/client: Fix error code in smb2_aead_req_alloc()

In the Linux kernel, the following vulnerability has been resolved: smb/client: Fix error code in smb2aeadreqalloc The "numsgs" variable is a u32 so "ERRPTRnumsgs" doesn't work. We would have to do something similar to the previous line where it's cast to int and then long. However, it's simpler ...