CVE-2024-26594

CRITICALEPSS 99th pctl

9.1

CVSS v3

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate mech token in session setup If client send invalid mech token in session setup request, ksmbd validate and make the error if it is invalid.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

linuxDebian

Fixed in:6.1.76-1CVE-2024-26594

Fixed in:6.6.15-1CVE-2024-26594

linuxUbuntu

Fixed in:5.15.0-106.116USN-6766-1

Fixed in:6.5.0-41.41USN-6818-1

linux-awsUbuntu

Fixed in:5.15.0-1061.67USN-6766-3

Fixed in:6.5.0-1021.21USN-6819-2

linux-aws-5.15Ubuntu

Fixed in:5.15.0-1061.67~20.04.1USN-6766-3

linux-azureUbuntu

Fixed in:5.15.0-1063.72USN-6766-1

Fixed in:6.5.0-1022.23USN-6819-1

linux-azure-5.15Ubuntu

Fixed in:5.15.0-1063.72~20.04.1USN-6766-1

linux-azure-6.5Ubuntu

Fixed in:6.5.0-1022.23~22.04.1USN-6819-1

linux-azure-fdeUbuntu

Fixed in:5.15.0-1063.72.1USN-6766-1

linux-azure-fde-5.15Ubuntu

Fixed in:5.15.0-1063.72~20.04.1.1USN-6766-1

linux-gcpUbuntu

Fixed in:5.15.0-1059.67USN-6766-1

Fixed in:6.5.0-1022.24USN-6818-1

linux-gcp-5.15Ubuntu

Fixed in:5.15.0-1059.67~20.04.1USN-6766-1

linux-gcp-6.5Ubuntu

Fixed in:6.5.0-1022.24~22.04.1USN-6818-1

linux-gkeUbuntu

Fixed in:5.15.0-1058.63USN-6766-1

linux-gkeopUbuntu

Fixed in:5.15.0-1044.51USN-6766-1

linux-gkeop-5.15Ubuntu

Fixed in:5.15.0-1044.51~20.04.1USN-6766-1

linux-hwe-5.15Ubuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-2

linux-hwe-6.5Ubuntu

Fixed in:6.5.0-41.41~22.04.2USN-6818-4

linux-ibmUbuntu

Fixed in:5.15.0-1054.57USN-6766-1

linux-ibm-5.15Ubuntu

Fixed in:5.15.0-1054.57~20.04.1USN-6766-1

linux-image-5.15.0-1044-gkeopUbuntu

Fixed in:5.15.0-1044.51~20.04.1USN-6766-1

Fixed in:5.15.0-1044.51USN-6766-1

linux-image-5.15.0-1054-ibmUbuntu

Fixed in:5.15.0-1054.57~20.04.1USN-6766-1

Fixed in:5.15.0-1054.57USN-6766-1

linux-image-5.15.0-1054-nvidiaUbuntu

Fixed in:5.15.0-1054.55USN-6766-1

linux-image-5.15.0-1054-nvidia-lowlatencyUbuntu

Fixed in:5.15.0-1054.55USN-6766-1

linux-image-5.15.0-1054-raspiUbuntu

Fixed in:5.15.0-1054.57USN-6766-2

linux-image-5.15.0-1057-intel-iotgUbuntu

Fixed in:5.15.0-1057.63USN-6795-1

linux-image-5.15.0-1058-gkeUbuntu

Fixed in:5.15.0-1058.63USN-6766-1

linux-image-5.15.0-1058-intel-iotgUbuntu

Fixed in:5.15.0-1058.64~20.04.1USN-6828-1

linux-image-5.15.0-1058-kvmUbuntu

Fixed in:5.15.0-1058.63USN-6766-1

linux-image-5.15.0-1059-gcpUbuntu

Fixed in:5.15.0-1059.67~20.04.1USN-6766-1

Fixed in:5.15.0-1059.67USN-6766-1

linux-image-5.15.0-1059-oracleUbuntu

Fixed in:5.15.0-1059.65~20.04.1USN-6766-1

Fixed in:5.15.0-1059.65USN-6766-1

linux-image-5.15.0-106-genericUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-2

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-106-generic-64kUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-2

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-106-generic-lpaeUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-2

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-106-lowlatencyUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-1

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-106-lowlatency-64kUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-1

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-1061-awsUbuntu

Fixed in:5.15.0-1061.67~20.04.1USN-6766-3

Fixed in:5.15.0-1061.67USN-6766-3

linux-image-5.15.0-1063-azureUbuntu

Fixed in:5.15.0-1063.72~20.04.1USN-6766-1

Fixed in:5.15.0-1063.72USN-6766-1

linux-image-5.15.0-1063-azure-fdeUbuntu

Fixed in:5.15.0-1063.72~20.04.1.1USN-6766-1

Fixed in:5.15.0-1063.72.1USN-6766-1

linux-image-6.1.0-1035-oemUbuntu

Fixed in:6.1.0-1035.35USN-6688-1

linux-image-6.5.0-1015-starfiveUbuntu

Fixed in:6.5.0-1015.16~22.04.1USN-6819-1

Fixed in:6.5.0-1015.16USN-6819-1

linux-image-6.5.0-1017-laptopUbuntu

Fixed in:6.5.0-1017.20USN-6818-2

linux-image-6.5.0-1018-raspiUbuntu

Fixed in:6.5.0-1018.21USN-6818-1

linux-image-6.5.0-1021-awsUbuntu

Fixed in:6.5.0-1021.21USN-6819-2

linux-image-6.5.0-1021-nvidiaUbuntu

Fixed in:6.5.0-1021.22USN-6818-3

linux-image-6.5.0-1021-nvidia-64kUbuntu

Fixed in:6.5.0-1021.22USN-6818-3

linux-image-6.5.0-1022-azureUbuntu

Fixed in:6.5.0-1022.23~22.04.1USN-6819-1

Fixed in:6.5.0-1022.23USN-6819-1

linux-image-6.5.0-1022-azure-fdeUbuntu

Fixed in:6.5.0-1022.23~22.04.1USN-6819-1

Fixed in:6.5.0-1022.23USN-6819-1

linux-image-6.5.0-1022-gcpUbuntu

Fixed in:6.5.0-1022.24~22.04.1USN-6818-1

Fixed in:6.5.0-1022.24USN-6818-1

linux-image-6.5.0-1024-oemUbuntu

Fixed in:6.5.0-1024.25USN-6819-3

linux-image-6.5.0-1024-oracleUbuntu

Fixed in:6.5.0-1024.24~22.04.1USN-6819-4

Fixed in:6.5.0-1024.24USN-6819-2

linux-image-6.5.0-1024-oracle-64kUbuntu

Fixed in:6.5.0-1024.24~22.04.1USN-6819-4

Fixed in:6.5.0-1024.24USN-6819-2

linux-image-6.5.0-41-genericUbuntu

Fixed in:6.5.0-41.41~22.04.2USN-6818-4

Fixed in:6.5.0-41.41USN-6818-1

linux-image-6.5.0-41-generic-64kUbuntu

Fixed in:6.5.0-41.41~22.04.2USN-6818-4

Fixed in:6.5.0-41.41USN-6818-1

linux-image-6.5.0-41-lowlatencyUbuntu

Fixed in:6.5.0-41.41.1~22.04.1USN-6818-1

Fixed in:6.5.0-41.41.1USN-6818-1

linux-image-6.5.0-41-lowlatency-64kUbuntu

Fixed in:6.5.0-41.41.1~22.04.1USN-6818-1

Fixed in:6.5.0-41.41.1USN-6818-1

linux-image-awsUbuntu

Fixed in:5.15.0.1061.67~20.04.1USN-6766-3

Fixed in:6.5.0.1021.21USN-6819-2

linux-image-aws-lts-22.04Ubuntu

Fixed in:5.15.0.1061.61USN-6766-3

linux-image-azureUbuntu

Fixed in:5.15.0.1063.72~20.04.1USN-6766-1

Fixed in:6.5.0.1022.23~22.04.1USN-6819-1

Fixed in:6.5.0.1022.26USN-6819-1

linux-image-azure-cvmUbuntu

Fixed in:5.15.0.1063.72~20.04.1USN-6766-1

linux-image-azure-fdeUbuntu

Fixed in:5.15.0.1063.72~20.04.1.41USN-6766-1

Fixed in:6.5.0.1022.23~22.04.1USN-6819-1

Fixed in:6.5.0.1022.26USN-6819-1

linux-image-azure-fde-lts-22.04Ubuntu

Fixed in:5.15.0.1063.72.41USN-6766-1

linux-image-azure-lts-22.04Ubuntu

Fixed in:5.15.0.1063.61USN-6766-1

linux-image-gcpUbuntu

Fixed in:5.15.0.1059.67~20.04.1USN-6766-1

Fixed in:6.5.0.1022.24~22.04.1USN-6818-1

Fixed in:6.5.0.1022.24USN-6818-1

linux-image-gcp-lts-22.04Ubuntu

Fixed in:5.15.0.1059.55USN-6766-1

linux-image-genericUbuntu

Fixed in:5.15.0.106.106USN-6766-1

Fixed in:6.5.0.41.41USN-6818-1

linux-image-generic-64kUbuntu

Fixed in:5.15.0.106.106USN-6766-1

Fixed in:6.5.0.41.41USN-6818-1

linux-image-generic-64k-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-generic-64k-hwe-22.04Ubuntu

Fixed in:6.5.0.41.41~22.04.2USN-6818-4

linux-image-generic-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-generic-hwe-22.04Ubuntu

Fixed in:6.5.0.41.41~22.04.2USN-6818-4

linux-image-generic-lpaeUbuntu

Fixed in:5.15.0.106.106USN-6766-1

Fixed in:6.5.0.41.41USN-6818-1

linux-image-generic-lpae-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-gkeUbuntu

Fixed in:5.15.0.1058.57USN-6766-1

linux-image-gke-5.15Ubuntu

Fixed in:5.15.0.1058.57USN-6766-1

linux-image-gkeopUbuntu

Fixed in:5.15.0.1044.43USN-6766-1

linux-image-gkeop-5.15Ubuntu

Fixed in:5.15.0.1044.51~20.04.1USN-6766-1

Fixed in:5.15.0.1044.43USN-6766-1

linux-image-ibmUbuntu

Fixed in:5.15.0.1054.57~20.04.1USN-6766-1

Fixed in:5.15.0.1054.50USN-6766-1

linux-image-intelUbuntu

Fixed in:5.15.0.1058.64~20.04.1USN-6828-1

linux-image-intel-iotgUbuntu

Fixed in:5.15.0.1058.64~20.04.1USN-6828-1

Fixed in:5.15.0.1057.57USN-6795-1

linux-image-kvmUbuntu

Fixed in:5.15.0.1058.54USN-6766-1

Fixed in:6.5.0.41.41USN-6818-1

linux-image-laptop-23.10Ubuntu

Fixed in:6.5.0.1017.20USN-6818-2

linux-image-lowlatencyUbuntu

Fixed in:5.15.0.106.101USN-6766-1

Fixed in:6.5.0.41.41.1USN-6818-1

linux-image-lowlatency-64kUbuntu

Fixed in:5.15.0.106.101USN-6766-1

Fixed in:6.5.0.41.41.1USN-6818-1

linux-image-lowlatency-64k-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-1

linux-image-lowlatency-64k-hwe-22.04Ubuntu

Fixed in:6.5.0.41.41.1~22.04.1USN-6818-1

linux-image-lowlatency-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.5.0.41.41.1~22.04.1USN-6818-1

linux-image-nvidiaUbuntu

Fixed in:5.15.0.1054.54USN-6766-1

linux-image-nvidia-6.5Ubuntu

Fixed in:6.5.0.1021.29USN-6818-3

linux-image-nvidia-64k-6.5Ubuntu

Fixed in:6.5.0.1021.29USN-6818-3

linux-image-nvidia-64k-hwe-22.04Ubuntu

Fixed in:6.5.0.1021.29USN-6818-3

linux-image-nvidia-hwe-22.04Ubuntu

Fixed in:6.5.0.1021.29USN-6818-3

linux-image-nvidia-lowlatencyUbuntu

Fixed in:5.15.0.1054.54USN-6766-1

linux-image-oem-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-oem-20.04bUbuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-oem-20.04cUbuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-oem-20.04dUbuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-oem-22.04Ubuntu

Fixed in:6.1.0.1035.36USN-6688-1

Fixed in:6.5.0.1024.26USN-6819-3

linux-image-oem-22.04aUbuntu

Fixed in:6.5.0.1024.26USN-6819-3

Fixed in:6.1.0.1035.36USN-6688-1

linux-image-oem-22.04bUbuntu

Fixed in:6.1.0.1035.36USN-6688-1

Fixed in:6.5.0.1024.26USN-6819-3

linux-image-oem-22.04cUbuntu

Fixed in:6.1.0.1035.36USN-6688-1

Fixed in:6.5.0.1024.26USN-6819-3

linux-image-oem-22.04dUbuntu

Fixed in:6.5.0.1024.26USN-6819-3

linux-image-oracleUbuntu

Fixed in:5.15.0.1059.65~20.04.1USN-6766-1

Fixed in:6.5.0.1024.24~22.04.1USN-6819-4

Fixed in:6.5.0.1024.26USN-6819-2

linux-image-oracle-64kUbuntu

Fixed in:6.5.0.1024.24~22.04.1USN-6819-4

Fixed in:6.5.0.1024.26USN-6819-2

linux-image-oracle-lts-22.04Ubuntu

Fixed in:5.15.0.1059.55USN-6766-1

linux-image-raspiUbuntu

Fixed in:5.15.0.1054.52USN-6766-2

Fixed in:6.5.0.1018.19USN-6818-1

linux-image-raspi-nolpaeUbuntu

Fixed in:5.15.0.1054.52USN-6766-2

Fixed in:6.5.0.1018.19USN-6818-1

linux-image-starfiveUbuntu

Fixed in:6.5.0.1015.16~22.04.1USN-6819-1

Fixed in:6.5.0.1015.17USN-6819-1

linux-image-virtualUbuntu

Fixed in:5.15.0.106.106USN-6766-1

Fixed in:6.5.0.41.41USN-6818-1

linux-image-virtual-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:6.5.0.41.41~22.04.2USN-6818-4

linux-intel-iotgUbuntu

Fixed in:5.15.0-1057.63USN-6795-1

linux-intel-iotg-5.15Ubuntu

Fixed in:5.15.0-1058.64~20.04.1USN-6828-1

linux-kvmUbuntu

Fixed in:5.15.0-1058.63USN-6766-1

linux-laptopUbuntu

Fixed in:6.5.0-1017.20USN-6818-2

linux-lowlatencyUbuntu

Fixed in:5.15.0-106.116USN-6766-1

Fixed in:6.5.0-41.41.1USN-6818-1

linux-lowlatency-hwe-5.15Ubuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-1

linux-lowlatency-hwe-6.5Ubuntu

Fixed in:6.5.0-41.41.1~22.04.1USN-6818-1

linux-nvidiaUbuntu

Fixed in:5.15.0-1054.55USN-6766-1

linux-nvidia-6.5Ubuntu

Fixed in:6.5.0-1021.22USN-6818-3

linux-oem-6.1Ubuntu

Fixed in:6.1.0-1035.35USN-6688-1

linux-oem-6.5Ubuntu

Fixed in:6.5.0-1024.25USN-6819-3

linux-oracleUbuntu

Fixed in:5.15.0-1059.65USN-6766-1

Fixed in:6.5.0-1024.24USN-6819-2

linux-oracle-5.15Ubuntu

Fixed in:5.15.0-1059.65~20.04.1USN-6766-1

linux-oracle-6.5Ubuntu

Fixed in:6.5.0-1024.24~22.04.1USN-6819-4

linux-raspiUbuntu

Fixed in:5.15.0-1054.57USN-6766-2

Fixed in:6.5.0-1018.21USN-6818-1

linux-starfiveUbuntu

Fixed in:6.5.0-1015.16USN-6819-1

linux-starfive-6.5Ubuntu

Fixed in:6.5.0-1015.16~22.04.1USN-6819-1

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

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Exploit Intelligence

51.25%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Patch5

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2020-8794	Critical	9.8	89%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2023-21769	High	7.5	89%	-	Fix

Common questions

How do I fix CVE-2024-26594?

Published advisories record a fix for 128 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-2024-26594 being actively exploited?

Not that we know of. CVE-2024-26594 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 51.2% 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-2024-26594?

CVE-2024-26594 has a CVSS v3 base score of 9.1, rated critical. 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-2024-26594 affect?

Published advisories record a fix for linux (Debian), linux (Ubuntu), linux-aws (Ubuntu), linux-aws-5.15 (Ubuntu), and 124 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-2024-26594

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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 2026-08-04.