CVE-2026-31710EPSS p3.1%
CVE-2026-31710CVE-2026-31710
linux / linux_kernel
Description
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix dir separator in SMB1 UNIX mounts
When calling cifs_mount_get_tcon() with SMB1 UNIX mounts,
@cifs_sb->mnt_cifs_flags needs to be read or updated only after
calling reset_cifs_unix_caps(), otherwise it might end up with missing
CIFS_MOUNT_POSIXACL and CIFS_MOUNT_POSIX_PATHS bits.
This fixes the wrong dir separator used in paths caused by the missing
CIFS_MOUNT_POSIX_PATHS bit in cifs_sb_info::mnt_cifs_flags.
Scoring
| CVSS | 5.5 () |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 0.14% probability of exploitation · percentile 3.1% · 2026-10-05T12:00:23Z |
| Last modified | 2026-09-21 |