CVE-2026-45972

CRITICAL EPSS 38.9%
Published May 27, 20261mo ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published May 27, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF and double free in smb2_open_file() Zero out @err_iov and @err_buftype before retrying SMB2_open() to prevent an UAF bug if @data != NULL, otherwise a double free.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
38.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥6.1.163  –  <6.1.165
linuxlinux_kernel*≥6.6.124  –  <6.6.128
linuxlinux_kernel*≥6.12.70  –  <6.12.75
linuxlinux_kernel*≥6.18.10  –  <6.18.14
linuxlinux_kernel*≥6.19.1  –  <6.19.4
linuxlinux_kernel6.19any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/4d339b219004869e96c4ce56b8891f83a38da4c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/639deb962986ef2f5e2a6d5a600c66f922471e81
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7425453ea16dbc3bbb0f6cac4d60b537e5e4d151
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/96e53bb3ee2f354cf6b4ab07bcc56e500f8b3f74
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e66dcf7bb9c4df5582c82bc3582725abcbfbea73
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ebbbc4bfad4cb355d17c671223d0814ee3ef4eda
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/4d339b219004869e96c4ce56b8891f83a38da4c0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/639deb962986ef2f5e2a6d5a600c66f922471e81
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7425453ea16dbc3bbb0f6cac4d60b537e5e4d151
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/96e53bb3ee2f354cf6b4ab07bcc56e500f8b3f74
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e66dcf7bb9c4df5582c82bc3582725abcbfbea73
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ebbbc4bfad4cb355d17c671223d0814ee3ef4eda
    Patch