ksmbd: not allow guest user on multichannel
Priority LOW 39Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: not allow guest user on multichannel This patch return STATUS_NOT_SUPPORTED if binding session is guest.
Why it matters now
EPSS 0.00373 31st percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.15.112, 6.1.28, 6.2.15 +2
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.15 and later | 5.15.112, 6.1.28, 6.2.15, 6.3.2, 6.4 | Patch available | CNA |
- Linux VendorLinux Affected 5.15 and later Fixed in 5.15.112, 6.1.28, 6.2.15, 6.3.2, 6.4 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.15 to before 5.15.112; 5.16 to before 6.1.28; 6.2 to before 6.2.15; 6.3 to before 6.3.2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15 to before 5.15.112; 5.16 to before 6.1.28; 6.2 to before 6.2.15; 6.3 to before 6.3.2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.112, 6.1.28, 6.2.15, 6.3.2, 6.4
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2023-32249
- 2026-10-03 Alias added: GHSA-xv7h-524v-h227
References
Patch 5
- https://git.kernel.org/stable/c/ed76d3a8910be06cd4e4ba63bf6075bf903945a1
- https://git.kernel.org/stable/c/1f0490586544455e5be698be2e6c30077b4ec461
- https://git.kernel.org/stable/c/4a98e859c4673013385a54084e0cd865695ca072
- https://git.kernel.org/stable/c/088131b7b01099720a528a72005ff17868705d40
- https://git.kernel.org/stable/c/3353ab2df5f68dab7da8d5ebb427a2d265a1f2b2
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2023-32249 · CVE Program
- CVE-2023-32249 · NVD
- FIRST EPSS
- GHSA-xv7h-524v-h227 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-32249 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences