CVE-2025-68817
BaseFortify
Publication date: 2026-01-13
Last updated on: 2026-02-26
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 | 6.6 |
| linux | linux_kernel | 6.6 |
| linux | linux_kernel | 6.6 |
| linux | linux_kernel | 6.6 |
| linux | linux_kernel | From 6.7 (inc) to 6.12.64 (exc) |
| linux | linux_kernel | From 6.13 (inc) to 6.18.3 (exc) |
| linux | linux_kernel | From 5.15.145 (inc) to 5.15.199 (exc) |
| linux | linux_kernel | From 6.1.71 (inc) to 6.1.160 (exc) |
| linux | linux_kernel | From 6.6.1 (inc) to 6.6.120 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a use-after-free issue in the Linux kernel's ksmbd component. Specifically, under high concurrency, a tree-connection object (tcon) can be freed on a disconnect path while another path still holds a reference to it and later attempts to use or write to it, leading to potential memory corruption or crashes.
How can this vulnerability impact me? :
The vulnerability can lead to memory corruption or system crashes due to use-after-free conditions when multiple concurrent operations access the same tree-connection object improperly. This can affect system stability and potentially be exploited to cause denial of service or other unintended behavior.