CVE-2025-39888
BaseFortify
Publication date: 2025-09-23
Last updated on: 2025-12-12
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | From 6.16 (inc) to 6.16.8 (exc) |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
| linux | linux_kernel | 6.17 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a slab-out-of-bounds write in the Linux kernel's fuse device driver (fuse_dev_do_write). It occurs when the number of bytes to be retrieved is truncated to an upper limit by max_pages and there is an offset, which triggers an out-of-bounds write. The issue was fixed by adding a loop termination condition to prevent memory overruns.
How can this vulnerability impact me? :
This vulnerability could lead to memory corruption in the Linux kernel, potentially causing system instability, crashes, or allowing an attacker to execute arbitrary code with kernel privileges.