CVE-2026-2340
6.5
MEDIUM
CVSS 3.1
EPSS 0.94%
Description
A flaw was found in Samba’s vfs_worm module. The module is intended to provide write-once, read-many (WORM) protections by preventing modification of files after a configurable grace period. Due to insufficient validation during rename operations, an authenticated user with write access to a share could overwrite a protected file by renaming a newly created file over the existing WORM-protected file.
How to fix CVE-2026-2340
To remediate CVE-2026-2340, upgrade the affected package to a fixed version below.
- —upgrade to 4.22.10-r0 or later
Is CVE-2026-2340 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 4.1.0, < 4.22.10-r0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |