What’s Vulnerable › Vulnerabilities

CVE-2026-93788: wifi: iwlwifi: acpi: validate WGDS table revision index

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-24 · updated 2026-10-03

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: acpi: validate WGDS table revision index Check tbl_rev bounds before BIT(tbl_rev) to avoid undefined shifts when firmware reports an invalid revision value.

Affected products

• Linux kernel: 5.16 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2fc98ab6fe8acabd13eb09dc17426a33cf9f27f7
• https://git.kernel.org/stable/c/346a558491241cbe8fef82b3d8f62d1a6b6bf61f
• https://git.kernel.org/stable/c/4f2ec7a0b3ff148cb13e14cb26ac43523df8b9f5
• https://git.kernel.org/stable/c/9096509e63ddd349eb075ec447d1a714e87e17a4
• https://git.kernel.org/stable/c/954e821f42aaca56073ca830c5fd4bcf1a89048c

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