wifi: iwlwifi: mvm: validate sta_id in BA window status notif (CVE-2026-93799) | HOL Guard CVE

High · CVSS 8.8CVE-2026-93799

wifi: iwlwifi: mvm: validate sta_id in BA window status notif

Answer in brief

CVE-2026-93799 records a High severity (CVSS 8.8) vulnerability in wifi: iwlwifi: mvm: validate sta_id in BA window status notif. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 24, 2026Updated Sep 25, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 25, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.8
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bb08fbbbd5568d33069485ecb0a1657f115a4e9f \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e35ae757c6462bfd3437bf58121bb721fe1f790c \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6aa77efaea9efea92e3090c35ad348fd759a3cf3 \|\| >=0 <6.12.111 \|\| >=0 <6.18.53	bb08fbbbd5568d33069485ecb0a1657f115a4e9f, e35ae757c6462bfd3437bf58121bb721fe1f790c, 6aa77efaea9efea92e3090c35ad348fd759a3cf3, 6.12.111, 6.18.53

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux.
Review the reported fix. Update Linux/Linux to bb08fbbbd5568d33069485ecb0a1657f115a4e9f if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: validate sta_id in BA window status notif BA_WINDOW_STATUS_NOTIFICATION_ID extracts a 5-bit sta_id from the firmware notification and uses it to index fw_id_to_mac_id[] without bounds checking. Validate sta_id before array access to prevent out-of-bounds indexing.

Quoted source text, attributed separately from HOL analysis.