CVE-2026-63957
HIGH severity · CVSS 7.8 · Out-of-bounds write
7.8CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: USB: serial: safe_serial: fix memory corruption with small endpoint Make sure that the bulk-out buffer size is at least eight bytes to avoid user-controlled slab corruption in "safe" mode should a malicious device report a smaller size.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/161ea0e5236f5f051d2d85d6c54dd08ee9dc7ba4 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/161ea0e5236f5f051d2d85d6c54dd08ee9dc7ba4Patch
- https://git.kernel.org/stable/c/438061ed1ad85e6743e2dce826671772d81089ecPatch
- https://git.kernel.org/stable/c/857b3cc73f91871ae4433f8b97c4670b78f8dc96Patch
- https://git.kernel.org/stable/c/9b3145b3001fb24de1da72d1deb0bea70e5a078bPatch
- https://git.kernel.org/stable/c/a550ed2117ca4709d38f713933ff924a83942e41Patch
- https://git.kernel.org/stable/c/c7336c0fba5c959249f3d793d33076b992ec3ee4Patch
- https://git.kernel.org/stable/c/e3a1d6eee25dc96b1d2db0ecd9d8741e92056476Patch
- https://git.kernel.org/stable/c/f793b67d41e5fab719c5a90baa77cbd2fe259517Patch