CVE & CISA-KEV CatalogNVD
CVE-2025-22037
HIGHEPSS 99th pctl7.5
CVSS v3
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in alloc_preauth_hash() The Client send malformed smb2 negotiate request. ksmbd return error response. Subsequently, the client can send smb2 session setup even thought conn->preauth_info is not allocated. This patch add KSMBD_SESS_NEED_SETUP status of connection to ignore session setup request if smb2 negotiate phase is not complete.
How to fix
Remediation Available
linuxDebian
Fixed in:6.12.25-1CVE-2025-22037
Fixed in:6.12.25-1CVE-2025-22037
linuxUbuntu
Fixed in:6.8.0-101.101USN-8059-1
linux-awsUbuntu
Fixed in:6.8.0-1047.50USN-8059-6
linux-aws-6.8Ubuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-6
linux-aws-fipsUbuntu
Fixed in:6.8.0-1047.50+fips1USN-8059-7
linux-azureUbuntu
Fixed in:6.8.0-1051.57USN-8125-1
linux-azure-6.11Ubuntu
Fixed in:6.11.0-1018.18~24.04.1USN-7628-1
linux-azure-6.8Ubuntu
Fixed in:6.8.0-1051.57~22.04.1USN-8126-1
linux-azure-fipsUbuntu
Fixed in:6.8.0-1047.53+fips1USN-8059-9
linux-fipsUbuntu
Fixed in:6.8.0-101.101+fips1USN-8059-5
linux-gcpUbuntu
Fixed in:6.8.0-1048.51USN-8059-3
linux-gcp-6.11Ubuntu
Fixed in:6.11.0-1016.16~24.04.1USN-7605-1
linux-gcp-6.8Ubuntu
Fixed in:6.8.0-1048.51~22.04.1USN-8059-3
linux-gcp-fipsUbuntu
Fixed in:6.8.0-1048.51+fips1USN-8059-5
linux-gkeUbuntu
Fixed in:6.8.0-1044.49USN-8059-3
linux-gkeopUbuntu
Fixed in:6.8.0-1031.34USN-8059-1
linux-hwe-6.11Ubuntu
Fixed in:6.11.0-28.28~24.04.1USN-7605-1
linux-hwe-6.8Ubuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
linux-ibmUbuntu
Fixed in:6.8.0-1045.45USN-8059-6
linux-ibm-6.8Ubuntu
Fixed in:6.8.0-1045.45~22.04.1USN-8059-6
linux-image-6.11.0-1015-lowlatencyUbuntu
Fixed in:6.11.0-1015.16~24.04.2USN-7605-2
linux-image-6.11.0-1015-lowlatency-64kUbuntu
Fixed in:6.11.0-1015.16~24.04.2USN-7605-2
linux-image-6.11.0-1016-gcpUbuntu
Fixed in:6.11.0-1016.16~24.04.1USN-7605-1
linux-image-6.11.0-1016-gcp-64kUbuntu
Fixed in:6.11.0-1016.16~24.04.1USN-7605-1
linux-image-6.11.0-1018-azureUbuntu
Fixed in:6.11.0-1018.18~24.04.1USN-7628-1
linux-image-6.11.0-1018-azure-fdeUbuntu
Fixed in:6.11.0-1018.18~24.04.1USN-7628-1
linux-image-6.11.0-1024-oemUbuntu
Fixed in:6.11.0-1024.24USN-7606-1
linux-image-6.11.0-28-genericUbuntu
Fixed in:6.11.0-28.28~24.04.1USN-7605-1
linux-image-6.11.0-28-generic-64kUbuntu
Fixed in:6.11.0-28.28~24.04.1USN-7605-1
linux-image-6.8.0-101-fipsUbuntu
Fixed in:6.8.0-101.101+fips1USN-8059-5
linux-image-6.8.0-101-genericUbuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
Fixed in:6.8.0-101.101USN-8059-1
linux-image-6.8.0-101-generic-64kUbuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
Fixed in:6.8.0-101.101USN-8059-1
linux-image-6.8.0-101-lowlatencyUbuntu
Fixed in:6.8.0-101.101.1~22.04.1USN-8059-1
Fixed in:6.8.0-101.101.1USN-8059-1
linux-image-6.8.0-101-lowlatency-64kUbuntu
Fixed in:6.8.0-101.101.1~22.04.1USN-8059-1
Fixed in:6.8.0-101.101.1USN-8059-1
linux-image-6.8.0-1024-xilinxUbuntu
Fixed in:6.8.0-1024.25USN-8059-6
linux-image-6.8.0-1031-gkeopUbuntu
Fixed in:6.8.0-1031.34USN-8059-1
linux-image-6.8.0-1044-gkeUbuntu
Fixed in:6.8.0-1044.49USN-8059-3
linux-image-6.8.0-1044-gke-64kUbuntu
Fixed in:6.8.0-1044.49USN-8059-3
linux-image-6.8.0-1044-oracleUbuntu
Fixed in:6.8.0-1044.45~22.04.1USN-8059-3
Fixed in:6.8.0-1044.45USN-8059-1
linux-image-6.8.0-1044-oracle-64kUbuntu
Fixed in:6.8.0-1044.45~22.04.1USN-8059-3
Fixed in:6.8.0-1044.45USN-8059-1
linux-image-6.8.0-1045-ibmUbuntu
Fixed in:6.8.0-1045.45~22.04.1USN-8059-6
Fixed in:6.8.0-1045.45USN-8059-6
linux-image-6.8.0-1047-awsUbuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-6
Fixed in:6.8.0-1047.50USN-8059-6
linux-image-6.8.0-1047-aws-64kUbuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-6
Fixed in:6.8.0-1047.50USN-8059-6
linux-image-6.8.0-1047-aws-fipsUbuntu
Fixed in:6.8.0-1047.50+fips1USN-8059-7
linux-image-6.8.0-1047-azure-fipsUbuntu
Fixed in:6.8.0-1047.53+fips1USN-8059-9
linux-image-6.8.0-1047-nvidiaUbuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-8
Fixed in:6.8.0-1047.50USN-8059-8
linux-image-6.8.0-1047-nvidia-64kUbuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-8
Fixed in:6.8.0-1047.50USN-8059-8
linux-image-6.8.0-1047-nvidia-lowlatencyUbuntu
Fixed in:6.8.0-1047.50.1USN-8059-8
linux-image-6.8.0-1047-nvidia-lowlatency-64kUbuntu
Fixed in:6.8.0-1047.50.1USN-8059-8
linux-image-6.8.0-1048-gcpUbuntu
Fixed in:6.8.0-1048.51~22.04.1USN-8059-3
Fixed in:6.8.0-1048.51USN-8059-3
linux-image-6.8.0-1048-gcp-64kUbuntu
Fixed in:6.8.0-1048.51~22.04.1USN-8059-3
Fixed in:6.8.0-1048.51USN-8059-3
linux-image-6.8.0-1048-gcp-fipsUbuntu
Fixed in:6.8.0-1048.51+fips1USN-8059-5
linux-image-6.8.0-1048-raspiUbuntu
Fixed in:6.8.0-1048.52USN-8059-1
linux-image-6.8.0-1051-azureUbuntu
Fixed in:6.8.0-1051.57~22.04.1USN-8126-1
Fixed in:6.8.0-1051.57USN-8125-1
linux-image-6.8.0-2038-raspi-realtimeUbuntu
Fixed in:6.8.0-2038.39USN-8059-2
linux-image-6.8.1-1042-realtimeUbuntu
Fixed in:6.8.1-1042.43USN-8059-4
linux-image-awsUbuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-6
linux-image-aws-6.8Ubuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-6
Fixed in:6.8.0-1047.50USN-8059-6
linux-image-aws-64kUbuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-6
linux-image-aws-64k-6.8Ubuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-6
Fixed in:6.8.0-1047.50USN-8059-6
linux-image-aws-64k-lts-24.04Ubuntu
Fixed in:6.8.0-1047.50USN-8059-6
linux-image-aws-fipsUbuntu
Fixed in:6.8.0-1047.50+fips1USN-8059-7
linux-image-aws-fips-6.8Ubuntu
Fixed in:6.8.0-1047.50+fips1USN-8059-7
linux-image-aws-lts-24.04Ubuntu
Fixed in:6.8.0-1047.50USN-8059-6
linux-image-azureUbuntu
Fixed in:6.8.0-1051.57~22.04.1USN-8126-1
Fixed in:6.11.0-1018.18~24.04.1USN-7628-1
linux-image-azure-6.11Ubuntu
Fixed in:6.11.0-1018.18~24.04.1USN-7628-1
linux-image-azure-6.8Ubuntu
Fixed in:6.8.0-1051.57~22.04.1USN-8126-1
Fixed in:6.8.0-1051.57USN-8125-1
linux-image-azure-fdeUbuntu
Fixed in:6.11.0-1018.18~24.04.1USN-7628-1
linux-image-azure-fde-6.11Ubuntu
Fixed in:6.11.0-1018.18~24.04.1USN-7628-1
linux-image-azure-fde-edgeUbuntu
Fixed in:6.11.0-1018.18~24.04.1USN-7628-1
linux-image-azure-fipsUbuntu
Fixed in:6.8.0-1047.53+fips1USN-8059-9
linux-image-azure-fips-6.8Ubuntu
Fixed in:6.8.0-1047.53+fips1USN-8059-9
linux-image-azure-lts-24.04Ubuntu
Fixed in:6.8.0-1051.57USN-8125-1
linux-image-fipsUbuntu
Fixed in:6.8.0-101.101+fips1USN-8059-5
linux-image-fips-6.8Ubuntu
Fixed in:6.8.0-101.101+fips1USN-8059-5
linux-image-gcpUbuntu
Fixed in:6.8.0-1048.51~22.04.1USN-8059-3
Fixed in:6.11.0-1016.16~24.04.1USN-7605-1
linux-image-gcp-6.8Ubuntu
Fixed in:6.8.0-1048.51~22.04.1USN-8059-3
Fixed in:6.8.0-1048.51USN-8059-3
linux-image-gcp-64kUbuntu
Fixed in:6.8.0-1048.51~22.04.1USN-8059-3
Fixed in:6.11.0-1016.16~24.04.1USN-7605-1
linux-image-gcp-64k-6.8Ubuntu
Fixed in:6.8.0-1048.51~22.04.1USN-8059-3
Fixed in:6.8.0-1048.51USN-8059-3
linux-image-gcp-64k-lts-24.04Ubuntu
Fixed in:6.8.0-1048.51USN-8059-3
linux-image-gcp-fipsUbuntu
Fixed in:6.8.0-1048.51+fips1USN-8059-5
linux-image-gcp-fips-6.8Ubuntu
Fixed in:6.8.0-1048.51+fips1USN-8059-5
linux-image-gcp-lts-24.04Ubuntu
Fixed in:6.8.0-1048.51USN-8059-3
linux-image-genericUbuntu
Fixed in:6.8.0-101.101USN-8059-1
linux-image-generic-6.8Ubuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
Fixed in:6.8.0-101.101USN-8059-1
linux-image-generic-64kUbuntu
Fixed in:6.8.0-101.101USN-8059-1
linux-image-generic-64k-6.8Ubuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
Fixed in:6.8.0-101.101USN-8059-1
linux-image-generic-64k-hwe-22.04Ubuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
linux-image-generic-64k-hwe-24.04Ubuntu
Fixed in:6.11.0-28.28~24.04.1USN-7605-1
linux-image-generic-hwe-22.04Ubuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
linux-image-generic-hwe-24.04Ubuntu
Fixed in:6.11.0-28.28~24.04.1USN-7605-1
linux-image-generic-lpaeUbuntu
Fixed in:6.8.0-101.101USN-8059-1
linux-image-gkeUbuntu
Fixed in:6.8.0-1044.49USN-8059-3
linux-image-gke-6.8Ubuntu
Fixed in:6.8.0-1044.49USN-8059-3
linux-image-gke-64kUbuntu
Fixed in:6.8.0-1044.49USN-8059-3
linux-image-gke-64k-6.8Ubuntu
Fixed in:6.8.0-1044.49USN-8059-3
linux-image-gkeopUbuntu
Fixed in:6.8.0-1031.34USN-8059-1
linux-image-gkeop-6.8Ubuntu
Fixed in:6.8.0-1031.34USN-8059-1
linux-image-ibmUbuntu
Fixed in:6.8.0-1045.45USN-8059-6
linux-image-ibm-6.8Ubuntu
Fixed in:6.8.0-1045.45~22.04.1USN-8059-6
Fixed in:6.8.0-1045.45USN-8059-6
linux-image-ibm-classicUbuntu
Fixed in:6.8.0-1045.45USN-8059-6
linux-image-ibm-lts-24.04Ubuntu
Fixed in:6.8.0-1045.45USN-8059-6
linux-image-intel-iot-realtimeUbuntu
Fixed in:6.8.1-1042.43USN-8059-4
linux-image-intel-iotgUbuntu
Fixed in:6.8.0-101.101USN-8059-1
linux-image-kvmUbuntu
Fixed in:6.8.0-101.101USN-8059-1
linux-image-lowlatencyUbuntu
Fixed in:6.8.0-101.101.1USN-8059-1
linux-image-lowlatency-6.11Ubuntu
Fixed in:6.11.0-1015.16~24.04.2USN-7605-2
linux-image-lowlatency-6.8Ubuntu
Fixed in:6.8.0-101.101.1~22.04.1USN-8059-1
Fixed in:6.8.0-101.101.1USN-8059-1
linux-image-lowlatency-64kUbuntu
Fixed in:6.8.0-101.101.1USN-8059-1
linux-image-lowlatency-64k-6.11Ubuntu
Fixed in:6.11.0-1015.16~24.04.2USN-7605-2
linux-image-lowlatency-64k-6.8Ubuntu
Fixed in:6.8.0-101.101.1~22.04.1USN-8059-1
Fixed in:6.8.0-101.101.1USN-8059-1
linux-image-lowlatency-64k-hwe-22.04Ubuntu
Fixed in:6.8.0-101.101.1~22.04.1USN-8059-1
linux-image-lowlatency-64k-hwe-24.04Ubuntu
Fixed in:6.11.0-1015.16~24.04.2USN-7605-2
linux-image-lowlatency-hwe-22.04Ubuntu
Fixed in:6.8.0-101.101.1~22.04.1USN-8059-1
linux-image-lowlatency-hwe-24.04Ubuntu
Fixed in:6.11.0-1015.16~24.04.2USN-7605-2
linux-image-nvidiaUbuntu
Fixed in:6.8.0-1047.50USN-8059-8
linux-image-nvidia-6.8Ubuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-8
Fixed in:6.8.0-1047.50USN-8059-8
linux-image-nvidia-64kUbuntu
Fixed in:6.8.0-1047.50USN-8059-8
linux-image-nvidia-64k-6.8Ubuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-8
Fixed in:6.8.0-1047.50USN-8059-8
linux-image-nvidia-64k-hwe-22.04Ubuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-8
linux-image-nvidia-hwe-22.04Ubuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-8
linux-image-nvidia-lowlatencyUbuntu
Fixed in:6.8.0-1047.50.1USN-8059-8
linux-image-nvidia-lowlatency-6.8Ubuntu
Fixed in:6.8.0-1047.50.1USN-8059-8
linux-image-nvidia-lowlatency-64kUbuntu
Fixed in:6.8.0-1047.50.1USN-8059-8
linux-image-nvidia-lowlatency-64k-6.8Ubuntu
Fixed in:6.8.0-1047.50.1USN-8059-8
linux-image-oem-22.04Ubuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
linux-image-oem-22.04aUbuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
linux-image-oem-22.04bUbuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
linux-image-oem-22.04cUbuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
linux-image-oem-22.04dUbuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
linux-image-oem-24.04bUbuntu
Fixed in:6.11.0-1024.24USN-7606-1
linux-image-oracleUbuntu
Fixed in:6.8.0-1044.45~22.04.1USN-8059-3
linux-image-oracle-6.8Ubuntu
Fixed in:6.8.0-1044.45~22.04.1USN-8059-3
Fixed in:6.8.0-1044.45USN-8059-1
linux-image-oracle-64kUbuntu
Fixed in:6.8.0-1044.45~22.04.1USN-8059-3
linux-image-oracle-64k-6.8Ubuntu
Fixed in:6.8.0-1044.45~22.04.1USN-8059-3
Fixed in:6.8.0-1044.45USN-8059-1
linux-image-oracle-64k-lts-24.04Ubuntu
Fixed in:6.8.0-1044.45USN-8059-1
linux-image-oracle-lts-24.04Ubuntu
Fixed in:6.8.0-1044.45USN-8059-1
linux-image-raspiUbuntu
Fixed in:6.8.0-1048.52USN-8059-1
linux-image-raspi-6.8Ubuntu
Fixed in:6.8.0-1048.52USN-8059-1
linux-image-raspi-realtimeUbuntu
Fixed in:6.8.0-2038.39USN-8059-2
linux-image-raspi-realtime-6.8Ubuntu
Fixed in:6.8.0-2038.39USN-8059-2
linux-image-realtimeUbuntu
Fixed in:6.8.1-1042.43USN-8059-4
linux-image-realtime-6.8.1Ubuntu
Fixed in:6.8.1-1042.43USN-8059-4
linux-image-virtualUbuntu
Fixed in:6.8.0-101.101USN-8059-1
linux-image-virtual-6.8Ubuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
Fixed in:6.8.0-101.101USN-8059-1
linux-image-virtual-hwe-22.04Ubuntu
Fixed in:6.8.0-101.101~22.04.1USN-8059-1
linux-image-virtual-hwe-24.04Ubuntu
Fixed in:6.11.0-28.28~24.04.1USN-7605-1
linux-image-xilinxUbuntu
Fixed in:6.8.0.1024.25USN-8059-6
linux-image-xilinx-6.8Ubuntu
Fixed in:6.8.0.1024.25USN-8059-6
linux-image-xilinx-zynqmpUbuntu
Fixed in:6.8.0.1024.25USN-8059-6
linux-lowlatencyUbuntu
Fixed in:6.8.0-101.101.1USN-8059-1
linux-lowlatency-hwe-6.11Ubuntu
Fixed in:6.11.0-1015.16~24.04.2USN-7605-2
linux-lowlatency-hwe-6.8Ubuntu
Fixed in:6.8.0-101.101.1~22.04.1USN-8059-1
linux-nvidiaUbuntu
Fixed in:6.8.0-1047.50USN-8059-8
linux-nvidia-6.8Ubuntu
Fixed in:6.8.0-1047.50~22.04.1USN-8059-8
linux-nvidia-lowlatencyUbuntu
Fixed in:6.8.0-1047.50.1USN-8059-8
linux-oem-6.11Ubuntu
Fixed in:6.11.0-1024.24USN-7606-1
linux-oracleUbuntu
Fixed in:6.8.0-1044.45USN-8059-1
linux-oracle-6.8Ubuntu
Fixed in:6.8.0-1044.45~22.04.1USN-8059-3
linux-raspiUbuntu
Fixed in:6.8.0-1048.52USN-8059-1
linux-raspi-realtimeUbuntu
Fixed in:6.8.0-2038.39USN-8059-2
linux-realtimeUbuntu
Fixed in:6.8.1-1042.43USN-8059-4
linux-realtime-6.8Ubuntu
Fixed in:6.8.1-1042.43~22.04.1USN-8059-4
linux-xilinxUbuntu
Fixed in:6.8.0-1024.25USN-8059-6
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
65.74%probability of exploitation in 30 days
99thpercentile
Very high risk: more likely to be exploited than 99% of all known CVEs.
References
Other references2
Related Vulnerabilities
Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-21758 | High | 7.5 | 93% | - | Fix |
| CVE-2023-21547 | High | 7.5 | 89% | - | Fix |
| CVE-2014-3470 | Medium | 4.3 | 86% | - | Fix |
| CVE-2021-44224 | High | 8.2 | 82% | - | Fix |
| CVE-2016-0742 | High | 7.5 | 82% | - | Fix |
| CVE-2009-1386 | Medium | 5.0 | 80% | - | Fix |
Common questions
How do I fix CVE-2025-22037?
Published advisories record a fix for 164 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2025-22037 being actively exploited?
Not that we know of. CVE-2025-22037 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 65.7% is the estimated probability that it will be exploited in the next 30 days. That is higher than 99% of all scored CVEs.
How severe is CVE-2025-22037?
CVE-2025-22037 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2025-22037 affect?
Published advisories record a fix for linux (Debian), linux (Ubuntu), linux-aws (Ubuntu), linux-aws-6.8 (Ubuntu), and 160 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2025-22037
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<a href="https://tridentstack.com/cve/CVE-2025-22037"><img src="https://tridentstack.com/cve/badge/CVE-2025-22037.svg" alt="CVE-2025-22037"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-30.