CVE-2025-21844

HIGH

In the Linux kernel, the following vulnerability has been resolved: smb: client: Add check for next_buffer in receive_encrypted_standard() Add check for the return value of cifs_buf_get() and cifs_small_buf_get() in receive_encrypted_standard() to prevent null pointer dereference.

CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Published: 3/12/2025Modified: 10/15/2026

Related Intelligence (1)

CRITICALVulnerability

Siemens SIMATIC S7-1500 TM MFP

<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-295-16.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP V1.1.1. Siemens is preparing fixes and recommends specific mitigations for products where fixes are not or not yet avail

CVE-2023-52927CVE-2023-53292
CISA Advisories

References (11)

https://git.kernel.org/stable/c/24e8e4523d3071bc5143b0db9127d511489f7b3bPatchhttps://git.kernel.org/stable/c/554736b583f529ee159aa95af9a0cbc12b5ffc96Patchhttps://git.kernel.org/stable/c/860ca5e50f73c2a1cef7eefc9d39d04e275417f7Patchhttps://git.kernel.org/stable/c/9e5d99a4cf2e23c716b44862975548415fae5391Patchhttps://git.kernel.org/stable/c/a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bdPatchhttps://git.kernel.org/stable/c/f277e479eea3d1aa18bc712abe1d2bf3dece2e30Patchhttps://git.kernel.org/stable/c/f618aeb6cad2307e48a641379db610abcf593edfPatchhttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.htmlhttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-265688.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-784472.html