Answer in brief
CVE-2026-46163 records a Unknown severity vulnerability in wifi: b43legacy: enforce bounds check on firmware key index in RX path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. 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.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=75388acd0cd827dc1498043daa7d1c760902cd67 <a92bd0503df2488f2cc040f329ebccff1c1934cb || >=75388acd0cd827dc1498043daa7d1c760902cd67 <df805c1d085b7a96077f0964185764c87060950d || >=75388acd0cd827dc1498043daa7d1c760902cd67 <4242db36de99de734cc1f60e5edd86cda7e598c6 || >=75388acd0cd827dc1498043daa7d1c760902cd67 <1baaeb6adecb9691748c0253dab6ddd19a2b4e9e || >=75388acd0cd827dc1498043daa7d1c760902cd67 <6ee946077607d7783ae6709a899213fc4fe08f35 || >=75388acd0cd827dc1498043daa7d1c760902cd67 <9d1bc155802943e92c57a5fb923d23edfbf0b525 || >=75388acd0cd827dc1498043daa7d1c760902cd67 <fdd4e51979f42ca8b1ab7e6176b607e1caabf2a5 || >=75388acd0cd827dc1498043daa7d1c760902cd67 <a035766f970bde2d4298346a31a80685be5c0205 | a92bd0503df2488f2cc040f329ebccff1c1934cb, df805c1d085b7a96077f0964185764c87060950d, 4242db36de99de734cc1f60e5edd86cda7e598c6, 1baaeb6adecb9691748c0253dab6ddd19a2b4e9e, 6ee946077607d7783ae6709a899213fc4fe08f35, 9d1bc155802943e92c57a5fb923d23edfbf0b525, fdd4e51979f42ca8b1ab7e6176b607e1caabf2a5, a035766f970bde2d4298346a31a80685be5c0205 |
| Linux/Linuxgeneric | 2.6.24 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: b43legacy: enforce bounds check on firmware key index in RX path Same fix as b43: the firmware-controlled key index in b43legacy_rx() can exceed dev->max_nr_keys. The existing B43legacy_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read of dev->key[]. Make the check enforcing by dropping the frame for invalid indices.
Quoted source text, attributed separately from HOL analysis.