CVE-2026-93803
CVE CVE-2026-93803EUVD EUVD-2026-86190Published 2026-09-24T16:02:37.000ZLast changed 2026-09-25T12:43:10.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: wifi: libipw: fix key index receive bound checks libipw_rx() reads skb->data[hdrlen + 3] to extract the WEP key index in both the software-decrypt key selection path and the hardware-decrypted IV/ICV strip path. In both places the existing guard only checks skb->len >= hdrlen + 3, which proves bytes up to hdrlen + 2 but not the byte at hdrlen + 3. Require hdrlen + 4 bytes before reading that item in both paths. This is a local source-boundary check only; it does not change the key index semantics.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux b453872c35cfcbdbf5a794737817f7d4e7b1b579 <c54b643e9a0936d038921c547736574fd7382cea; patch: 6.12.111; b453872c35cfcbdbf5a794737817f7d4e7b1b579 <74ed3669f26803b1761c1f55403062bea44c3466; patch: 7.2; b453872c35cfcbdbf5a794737817f7d4e7b1b579 <062840bdc9ee06169b3c371bf66711f1d7ec0bf4; patch: 0; patch: 6.18.53; 2.6.14
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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