CVE-2026-93793wifi: iwlwifi: mvm: validate TX_CMD response layout
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In 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.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c before fc14f5fe8a4374ed1088cfbddc1dae4d16c9935b; 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c builds before 4d942dfc13aec393e003ab28ff58db744c26e6eb; from 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c before 8d70881707b47353359df57df12f6de67fdacdd2 | CNA record |
References
- https://git.kernel.org/stable/c/fc14f5fe8a4374ed1088cfbddc1dae4d16c9935b
- https://git.kernel.org/stable/c/4d942dfc13aec393e003ab28ff58db744c26e6eb
- https://git.kernel.org/stable/c/8d70881707b47353359df57df12f6de67fdacdd2
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.