Is CVE-2021-46926 in the CISA KEV catalog?

No. CVE-2021-46926 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-46926?

CVE-2021-46926 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-46926?

CVE-2021-46926 has an EPSS score of 0.21% (11th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-46926?

Upgrade linux on debian 12 to 5.15.15-1 or later. Fixes are available for 62 affected products.

CVE & CISA-KEV Catalog

CVE-2021-46926

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: intel-sdw-acpi: harden detection of controller The existing code currently sets a pointer to an ACPI handle before checking that it's actually a SoundWire controller. This can lead to issues where the graph walk continues and eventually fails, but the pointer was set already. This patch changes the logic so that the information provided to the caller is set when a controller is found.

How to fix

Remediation Available

linuxDebian

Fixed in:5.15.15-1CVE-2021-46926

linuxUbuntu

Fixed in:5.4.0-193.213USN-6973-1

linux-awsUbuntu

Fixed in:5.4.0-1131.141USN-6973-1

linux-aws-5.4Ubuntu

Fixed in:5.4.0-1131.141~18.04.1USN-6973-3

linux-azureUbuntu

Fixed in:5.4.0-1136.143USN-6973-1

linux-azure-5.4Ubuntu

Fixed in:5.4.0-1136.143~18.04.1USN-6973-2

linux-bluefieldUbuntu

Fixed in:5.4.0-1091.98USN-6973-1

linux-gcpUbuntu

Fixed in:5.4.0-1135.144USN-6973-1

linux-gcp-5.4Ubuntu

Fixed in:5.4.0-1135.144~18.04.1USN-6973-1

linux-gkeopUbuntu

Fixed in:5.4.0-1098.102USN-6973-1

linux-hwe-5.4Ubuntu

Fixed in:5.4.0-193.213~18.04.1USN-6973-1

linux-ibmUbuntu

Fixed in:5.4.0-1078.83USN-6973-1

linux-ibm-5.4Ubuntu

Fixed in:5.4.0-1078.83~18.04.1USN-6973-1

linux-image-5.4.0-1043-iotUbuntu

Fixed in:5.4.0-1043.44USN-7006-1

linux-image-5.4.0-1050-xilinx-zynqmpUbuntu

Fixed in:5.4.0-1050.54USN-6973-1

linux-image-5.4.0-1078-ibmUbuntu

Fixed in:5.4.0-1078.83~18.04.1USN-6973-1

Fixed in:5.4.0-1078.83USN-6973-1

linux-image-5.4.0-1091-bluefieldUbuntu

Fixed in:5.4.0-1091.98USN-6973-1

linux-image-5.4.0-1098-gkeopUbuntu

Fixed in:5.4.0-1098.102USN-6973-1

linux-image-5.4.0-1115-raspiUbuntu

Fixed in:5.4.0-1115.127~18.04.1USN-6973-4

Fixed in:5.4.0-1115.127USN-6973-1

linux-image-5.4.0-1119-kvmUbuntu

Fixed in:5.4.0-1119.127USN-6973-1

linux-image-5.4.0-1130-oracleUbuntu

Fixed in:5.4.0-1130.139~18.04.1USN-6973-1

Fixed in:5.4.0-1130.139USN-6973-1

linux-image-5.4.0-1131-awsUbuntu

Fixed in:5.4.0-1131.141~18.04.1USN-6973-3

Fixed in:5.4.0-1131.141USN-6973-1

linux-image-5.4.0-1135-gcpUbuntu

Fixed in:5.4.0-1135.144~18.04.1USN-6973-1

Fixed in:5.4.0-1135.144USN-6973-1

linux-image-5.4.0-1136-azureUbuntu

Fixed in:5.4.0-1136.143~18.04.1USN-6973-2

Fixed in:5.4.0-1136.143USN-6973-1

linux-image-5.4.0-193-genericUbuntu

Fixed in:5.4.0-193.213~18.04.1USN-6973-1

Fixed in:5.4.0-193.213USN-6973-1

linux-image-5.4.0-193-generic-lpaeUbuntu

Fixed in:5.4.0-193.213USN-6973-1

linux-image-5.4.0-193-lowlatencyUbuntu

Fixed in:5.4.0-193.213~18.04.1USN-6973-1

Fixed in:5.4.0-193.213USN-6973-1

linux-image-awsUbuntu

Fixed in:5.4.0.1131.141~18.04.1USN-6973-3

linux-image-aws-lts-20.04Ubuntu

Fixed in:5.4.0.1131.128USN-6973-1

linux-image-azureUbuntu

Fixed in:5.4.0.1136.143~18.04.1USN-6973-2

linux-image-azure-lts-20.04Ubuntu

Fixed in:5.4.0.1136.130USN-6973-1

linux-image-bluefieldUbuntu

Fixed in:5.4.0.1091.87USN-6973-1

linux-image-gcpUbuntu

Fixed in:5.4.0.1135.144~18.04.1USN-6973-1

linux-image-gcp-lts-20.04Ubuntu

Fixed in:5.4.0.1135.137USN-6973-1

linux-image-genericUbuntu

Fixed in:5.4.0.193.191USN-6973-1

linux-image-generic-hwe-18.04Ubuntu

Fixed in:5.4.0.193.213~18.04.1USN-6973-1

linux-image-generic-lpaeUbuntu

Fixed in:5.4.0.193.191USN-6973-1

linux-image-gkeopUbuntu

Fixed in:5.4.0.1098.96USN-6973-1

linux-image-gkeop-5.4Ubuntu

Fixed in:5.4.0.1098.96USN-6973-1

linux-image-ibmUbuntu

Fixed in:5.4.0.1078.83~18.04.1USN-6973-1

linux-image-ibm-lts-20.04Ubuntu

Fixed in:5.4.0.1078.107USN-6973-1

linux-image-kvmUbuntu

Fixed in:5.4.0.1119.115USN-6973-1

linux-image-lowlatencyUbuntu

Fixed in:5.4.0.193.191USN-6973-1

linux-image-lowlatency-hwe-18.04Ubuntu

Fixed in:5.4.0.193.213~18.04.1USN-6973-1

linux-image-oemUbuntu

Fixed in:5.4.0.193.213~18.04.1USN-6973-1

Fixed in:5.4.0.193.191USN-6973-1

linux-image-oem-osp1Ubuntu

Fixed in:5.4.0.193.213~18.04.1USN-6973-1

Fixed in:5.4.0.193.191USN-6973-1

linux-image-oracleUbuntu

Fixed in:5.4.0.1130.139~18.04.1USN-6973-1

linux-image-oracle-lts-20.04Ubuntu

Fixed in:5.4.0.1130.123USN-6973-1

linux-image-raspiUbuntu

Fixed in:5.4.0.1115.145USN-6973-1

linux-image-raspi-hwe-18.04Ubuntu

Fixed in:5.4.0.1115.127~18.04.1USN-6973-4

linux-image-raspi2Ubuntu

Fixed in:5.4.0.1115.145USN-6973-1

linux-image-snapdragon-hwe-18.04Ubuntu

Fixed in:5.4.0.193.213~18.04.1USN-6973-1

linux-image-virtualUbuntu

Fixed in:5.4.0.193.191USN-6973-1

linux-image-virtual-hwe-18.04Ubuntu

Fixed in:5.4.0.193.213~18.04.1USN-6973-1

linux-image-xilinx-zynqmpUbuntu

Fixed in:5.4.0.1050.50USN-6973-1

linux-iotUbuntu

Fixed in:5.4.0-1043.44USN-7006-1

linux-kvmUbuntu

Fixed in:5.4.0-1119.127USN-6973-1

linux-oracleUbuntu

Fixed in:5.4.0-1130.139USN-6973-1

linux-oracle-5.4Ubuntu

Fixed in:5.4.0-1130.139~18.04.1USN-6973-1

linux-raspiUbuntu

Fixed in:5.4.0-1115.127USN-6973-1

linux-raspi-5.4Ubuntu

Fixed in:5.4.0-1115.127~18.04.1USN-6973-4

linux-xilinx-zynqmpUbuntu

Fixed in:5.4.0-1050.54USN-6973-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.21%probability of exploitation in 30 days

11thpercentile

Low risk: more likely to be exploited than 11% of all known CVEs.

References

Patch2

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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 2024-11-21.