CVE-2026-64138
HIGH
MEDIUM
Priority: 0.04
BB Relevance:
68/100
Published: 2026-07-19
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Network
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate SID in parent security descriptor during ACL inheritance Introduce smb_validate_ntsd_sid() helper to safely validate Owner SID and Group SID inside the NT Security Descriptor (smb_ntsd) retrieved from the parent directory.
Affected Software (12)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < f7c4dee323d9176b8d3f5c69018ee57ae0d4653c |
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 8efbea0253b7fa2d1960cab0fed36544ca0b41ab |
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < f0e5c9c663badc9982e6941322eef1cb17de0f11 |
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 18d8db24b0a5b7be4829238dd4022236df02d421 |
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 1c9d0646a9959752f11ca1080dc1ff26bd1756cb |
| Linux | Linux | e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 69f030cf95488ae1186c72ac8c66fd279664ea7f |
| Linux | Linux | 5.15 |
| linux | linux_kernel | 5.15 – 6.12.92 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |
| linux | linux_kernel | 7.1 |