What’s Vulnerable › Vulnerabilities

CVE-2026-93789: wifi: iwlwifi: bound aligned TLV advance in FW parser

• 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: bound aligned TLV advance in FW parser Validate ALIGN(tlv_len, 4) against remaining parser length before consuming bytes from the firmware image. This avoids length underflow on malformed TLVs.

Affected products

• Linux kernel: 2.6.35 — 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/4cfadb2e01566bc36d42922fbe18838345087050
• https://git.kernel.org/stable/c/528fa9eb14c209533ca26958b76da55e0ce239d8
• https://git.kernel.org/stable/c/61da42fdd21d98ccb8f1ec5224659f3d09202cf4
• https://git.kernel.org/stable/c/7aa9097623afb694bc25382a62e14d8e82bf002f
• https://git.kernel.org/stable/c/8c332d45b736d41301b7e07f322785d821265dbc
• https://git.kernel.org/stable/c/acad742714bdc70e7fd7f234323807c596828213
• https://git.kernel.org/stable/c/ce709fcab5e1d4df6d4ba980736dc5908502a40f

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