A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_LOGOFF commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
CVE-2023-32252
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2023-07-24. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 40(Track)EG Risk 40/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation4% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 4%
- EPSS %ILE
- 90%
- KEV
- Not listed
Published
July 24, 2023
Last Modified
November 21, 2024
References (8)
- secalert@redhathttps://access.redhat.com/security/cve/CVE-2023-32252
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=2219815
- secalert@redhathttps://security.netapp.com/advisory/ntap-20231124-0001/
- secalert@redhathttps://www.zerodayinitiative.com/advisories/ZDI-CAN-20590/
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-32252
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2219815
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20231124-0001/
- af854a3a-2127-422b-91ae-364da2661108https://www.zerodayinitiative.com/advisories/ZDI-CAN-20590/
Patch Availability(8)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-virtual-hwe-22.04-edge (6.2.0.32.32) @ lunar | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-azure (6.2.0.1011.11) @ lunar | 2026-05-24 | ubuntu |
| ubuntu | linux-virtual-hwe-20.04-edge (5.15.0.94.91) @ jammy | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-intel-iotg (5.15.0.1047.47) @ jammy | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-starfive (6.2.0.1004.7) @ lunar | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-raspi-nolpae (5.15.0.1046.44) @ jammy | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-intel-iotg-edge (5.15.0.1048.54~20.04.38) @ focal | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-azure-fde-edge (5.15.0.1056.64~20.04.1.34) @ focal | 2026-05-24 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(3 across 3 ecosystems)
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | 6.1.27-1 | 6.1.37-1 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | — | 6.3.7-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | — | 6.3.7-1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(9)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
- Microsoft MSRCCVE-2023-322522023-07-31
Session null pointer dereference denial-of-service vulnerability
- UbuntuUSN-6338-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6338-2MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6344-1MEDIUM
Linux kernel (Azure) vulnerabilities
- UbuntuUSN-6626-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6626-2MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-6626-3MEDIUM
Linux kernel (Azure) vulnerabilities
- UbuntuUSN-6628-1MEDIUM
Linux kernel (Intel IoTG) vulnerabilities
- UbuntuUSN-6628-2MEDIUM
Linux kernel (Intel IoTG) vulnerabilities
Data Freshness Timeline
(refreshed 1× in last 7d / 22× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 165 total refreshes for this CVE.
- 2026-09-16 14:05 UTCEPSS rescore
- 2026-09-12 14:58 UTCEPSS rescore
- 2026-09-11 14:50 UTCEPSS rescore
- 2026-09-11 09:34 UTCEPSS rescore
- 2026-09-08 21:57 UTCEPSS rescore
- 2026-09-07 15:59 UTCEPSS rescore
- 2026-09-06 13:45 UTCEPSS rescore
- 2026-09-05 15:26 UTCEPSS rescore
- 2026-09-04 13:58 UTCEPSS rescore
- 2026-09-04 05:04 UTCEPSS rescore
- 2026-09-03 22:59 UTCOSV refresh
- 2026-09-02 14:09 UTCEPSS rescore
- 2026-09-01 13:51 UTCEPSS rescore
- 2026-08-30 19:15 UTCEPSS rescore
- 2026-08-30 01:20 UTCEPSS rescore
- 2026-08-28 21:38 UTCEPSS rescore
- 2026-08-27 14:23 UTCEPSS rescore
- 2026-08-26 14:43 UTCEPSS rescore
- 2026-08-25 13:46 UTCEPSS rescore
- 2026-08-24 14:14 UTCEPSS rescore
- 2026-08-23 00:17 UTCEPSS rescore
- 2026-08-21 23:47 UTCEPSS rescore
- 2026-08-20 22:53 UTCEPSS rescore
- 2026-08-19 17:02 UTCEPSS rescore
- 2026-08-18 13:46 UTCEPSS rescore
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- 2026-08-17 13:45 UTCEPSS rescore
- 2026-08-17 12:16 UTCOSV refresh
- 2026-08-16 14:54 UTCEPSS rescore
- 2026-08-16 02:12 UTCEPSS rescore
- 2026-08-15 01:28 UTCEPSS rescore
- 2026-08-13 21:58 UTCEPSS rescore
- 2026-08-12 13:48 UTCEPSS rescore
- 2026-08-11 13:39 UTCEPSS rescore
- 2026-08-09 13:44 UTCEPSS rescore
- 2026-08-08 16:34 UTCEPSS rescore
- 2026-08-07 16:24 UTCEPSS rescore
- 2026-08-06 13:44 UTCEPSS rescore
- 2026-08-05 19:15 UTCEPSS rescore
- 2026-08-05 19:15 UTCEPSS rescore
- 2026-08-04 15:07 UTCEPSS rescore
- 2026-08-04 10:35 UTCEPSS rescore
- 2026-08-03 10:34 UTCEPSS rescore
- 2026-08-02 06:45 UTCOSV refresh
- 2026-08-02 02:25 UTCEPSS rescore
- 2026-08-01 04:13 UTCEPSS rescore
- 2026-07-30 16:26 UTCEPSS rescore
- 2026-07-30 16:26 UTCEPSS rescore
- 2026-07-30 01:28 UTCEPSS rescore
- 2026-07-30 01:28 UTCEPSS rescore
- 2026-07-28 15:34 UTCEPSS rescore
- 2026-07-27 14:10 UTCEPSS rescore
- 2026-07-25 14:16 UTCEPSS rescore
- 2026-07-24 14:16 UTCEPSS rescore
- 2026-07-23 14:16 UTCEPSS rescore
- 2026-07-23 14:16 UTCEPSS rescore
- 2026-07-23 02:22 UTCEG score recompute
- 2026-07-22 23:09 UTCEG score recompute
- 2026-07-22 14:06 UTCEPSS rescore
- 2026-07-21 15:23 UTCEPSS rescore
- 2026-07-21 15:23 UTCEPSS rescore
- 2026-07-20 17:06 UTCEPSS rescore
- 2026-07-19 14:29 UTCEPSS rescore
- 2026-07-19 14:29 UTCEPSS rescore
- 2026-07-19 02:27 UTCEPSS rescore
- 2026-07-19 02:27 UTCEPSS rescore
- 2026-07-18 10:03 UTCEPSS rescore
- 2026-07-18 10:03 UTCEPSS rescore
- 2026-07-16 17:01 UTCEPSS rescore
- 2026-07-15 16:56 UTCEPSS rescore
- 2026-07-15 16:56 UTCEPSS rescore
- 2026-07-15 14:19 UTCOSV refresh
- 2026-07-15 01:58 UTCEPSS rescore
- 2026-07-15 01:58 UTCEPSS rescore
- 2026-07-13 22:28 UTCEPSS rescore
- 2026-07-13 22:28 UTCEPSS rescore
- 2026-07-12 05:45 UTCEPSS rescore
- 2026-07-11 08:26 UTCEPSS rescore
- 2026-07-11 08:25 UTCEPSS rescore
- 2026-07-09 19:08 UTCEPSS rescore
- 2026-07-09 19:08 UTCEPSS rescore
- 2026-07-08 15:13 UTCEPSS rescore
- 2026-07-07 13:44 UTCEPSS rescore
- 2026-07-06 16:26 UTCEPSS rescore
- 2026-07-06 16:26 UTCEPSS rescore
- 2026-07-06 02:21 UTCEPSS rescore
- 2026-07-05 02:29 UTCEPSS rescore
- 2026-07-04 06:29 UTCEPSS rescore
- 2026-07-02 16:59 UTCEPSS rescore
- 2026-07-01 15:04 UTCEPSS rescore
- 2026-06-30 23:21 UTCEPSS rescore
- 2026-06-30 23:21 UTCEPSS rescore
- 2026-06-29 14:05 UTCEPSS rescore
- 2026-06-29 14:05 UTCEPSS rescore
- 2026-06-28 04:55 UTCEPSS rescore
- 2026-06-28 04:55 UTCEPSS rescore
- 2026-06-27 15:04 UTCOSV refresh
- 2026-06-27 03:07 UTCEPSS rescore
- 2026-06-27 03:07 UTCEPSS rescore
- 2026-06-25 13:48 UTCEPSS rescore
- 2026-06-25 13:48 UTCEPSS rescore
Related CVEs(same vendor + same CWE)
Same vendor
10 shownubuntu:USN-6338-1 · ubuntu:USN-6626-1
Frequently asked(5)
What is CVE-2023-32252?
When was CVE-2023-32252 disclosed?
Is CVE-2023-32252 actively exploited?
What is the CVSS score of CVE-2023-32252?
How do I remediate CVE-2023-32252?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-32252
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