wifi: iwlwifi: mvm: validate TX_CMD response layout

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-93793
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-24 17:17:12 UTC
Updated2026-10-21 13:21:07 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: validate TX_CMD response layout TX_CMD parsing uses frame_count to walk status entries and then read the trailing SCD SSN. Make the minimum-length check follow that exact runtime layout calculation before parsing the payload. For new TX API, reject TX_CMD responses with frame_count != 1 and warn/return in the aggregation handler to document that aggregated accounting is expected via BA notifications.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.002390000 probability, percentile 0.140990000 (date 2026-10-21)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c 5e871c03506c529d5fe372d099c1ad1465c7bc38 git Not specified
CNA Linux Linux affected 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c fc14f5fe8a4374ed1088cfbddc1dae4d16c9935b git Not specified
CNA Linux Linux affected 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c 4d942dfc13aec393e003ab28ff58db744c26e6eb git Not specified
CNA Linux Linux affected 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c 8d70881707b47353359df57df12f6de67fdacdd2 git Not specified
CNA Linux Linux affected 3.9 Not specified
CNA Linux Linux unaffected 3.9 semver Not specified
CNA Linux Linux unaffected 6.6.160 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.111 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/fc14f5fe8a4374ed1088cfbddc1dae4d16c9935b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4d942dfc13aec393e003ab28ff58db744c26e6eb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8d70881707b47353359df57df12f6de67fdacdd2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5e871c03506c529d5fe372d099c1ad1465c7bc38 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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