CVE-2026-43281

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-43281
In the Linux kernel, the following vulnerability has been resolved: mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate() Although it is guided that `#mbox-cells` must be at least 1, there are many instances of `#mbox-cells = <0>;` in the device tree. If that is the case and the corresponding mailbox controller does not provide `fw_xlate` and of_xlate` function pointers, `fw_mbox_index_xlate()` will be used by default and out-of-bounds accesses could occur due to lack of bounds check in that function.

7.1 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/01d9a8c2615d436b2b30c19c1afe9fcd5726ff6d Patch
https://git.kernel.org/stable/c/2662ed331a69c0b551f78af58f12eb629a89a36f Patch
https://git.kernel.org/stable/c/2c7ff651ec6b660c7c96a36db9328b3232f555d8
https://git.kernel.org/stable/c/31c4c67dec3362094a6747a171a4848e98542265 Patch
https://git.kernel.org/stable/c/4caae8168d1b808c7d4ff481295292e3f97f90fb Patch
https://git.kernel.org/stable/c/ec0874447895b994182a962d2fee9ef075de5efd
https://git.kernel.org/stable/c/f50b39fd7c72a8734153644ee945ca0d8b2e65ab Patch
https://git.kernel.org/stable/c/fcd7f96c783626c07ee3ed75fa3739a8a2052310 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:rc7:*:*:*:*:*:*
History

01 Jun 2026, 17:17

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/2c7ff651ec6b660c7c96a36db9328b3232f555d8 -
  • () https://git.kernel.org/stable/c/ec0874447895b994182a962d2fee9ef075de5efd -

08 May 2026, 19:13

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.1
References () https://git.kernel.org/stable/c/01d9a8c2615d436b2b30c19c1afe9fcd5726ff6d - () https://git.kernel.org/stable/c/01d9a8c2615d436b2b30c19c1afe9fcd5726ff6d - Patch
References () https://git.kernel.org/stable/c/2662ed331a69c0b551f78af58f12eb629a89a36f - () https://git.kernel.org/stable/c/2662ed331a69c0b551f78af58f12eb629a89a36f - Patch
References () https://git.kernel.org/stable/c/31c4c67dec3362094a6747a171a4848e98542265 - () https://git.kernel.org/stable/c/31c4c67dec3362094a6747a171a4848e98542265 - Patch
References () https://git.kernel.org/stable/c/4caae8168d1b808c7d4ff481295292e3f97f90fb - () https://git.kernel.org/stable/c/4caae8168d1b808c7d4ff481295292e3f97f90fb - Patch
References () https://git.kernel.org/stable/c/f50b39fd7c72a8734153644ee945ca0d8b2e65ab - () https://git.kernel.org/stable/c/f50b39fd7c72a8734153644ee945ca0d8b2e65ab - Patch
References () https://git.kernel.org/stable/c/fcd7f96c783626c07ee3ed75fa3739a8a2052310 - () https://git.kernel.org/stable/c/fcd7f96c783626c07ee3ed75fa3739a8a2052310 - Patch
CWE CWE-125
CPE cpe:2.3:o:linux:linux_kernel:3.18:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.18:rc3:*:*:*:*:*:*
First Time Linux linux Kernel
Linux

06 May 2026, 12:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-06 12:16

Updated : 2026-06-01 17:17

NVD link : CVE-2026-43281

Mitre link : CVE-2026-43281

CVE.ORG link : CVE-2026-43281

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-125

Out-of-bounds Read