Vulnerability details
CVE-2023-32256
Kernel: ksmbd race issue from smb2 close and logoff with multichannel
CVSS 3.1
7.5High
Official description
A flaw was found in the Linux kernel's ksmbd component. A race condition between smb2 close operation and logoff in multichannel connections could result in a use-after-free issue.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (redhat) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| No product information recorded. | |||
References and advisories
4- https://access.redhat.com/security/cve/CVE-2023-32256 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2385885 issue-trackingx_refsource_REDHAT
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=abcc506a9a71976a8b4c9bf3ee6efd13229c1e19
- https://www.zerodayinitiative.com/advisories/ZDI-23-704/
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Details
- Published
- 2025-08-01
- Last updated
- 2026-11-06
- State
- Published
- Assigner (CNA)
- redhat
Exploit prediction (EPSS)
0.61%
Probability of exploitation in 30 days
49.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-421Race Condition During Access to Alternate Channel