VDB
DEBIAN-CVE-2021-45100
DEBIAN-CVE-2021-45100
PUBLISHED
CVSS 7.5 HIGH
The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2_GLOBAL_CAP_ENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol specification. When Windows 10 detects this protocol violation, it disables encryption.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | linux | 0, 0, 0 |
| Debian:13 | linux | 0, 0, 0 |
| Debian:12 | linux | 0, 0, 0 |
Timeline
- Dec 16, 2021 CVE Published
- Apr 28, 2026 CVE Updated