Not yet scoredPublished Oct 23, 2026

CVE-2026-98890wifi: libertas: reject short monitor TX frames

Updated under an hour ago (Oct 28, 2026, 1:30 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: reject short monitor TX frames In monitor mode, lbs_hard_start_xmit() casts skb->data to a radiotap TX header, skips that header, and then copies the 802.11 destination address from offset 4 in the remaining frame. The generic length check only rejects zero-length and oversized skbs, so a short monitor frame can be read past the end of the skb data. Require enough bytes for the radiotap TX header and the destination address field before using the monitor-mode header layout.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 26, 2026
First seen by InfoSec Signals: Oct 23, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	876c9d3aeb989cf1961f2c228d309ba5dcfb1172 builds before 68c92c991ddb75dfd3fd62a94a1d4d2dde44dc3c; from 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 before d865dd6de8295f2bfaa83f0f5d49d2bef1543065; from 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 before 6576baa3fdbaa91fa75e4ba27095f4b8a27349a8; from 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 before b657cc98d7936c5d9ed7e0e1944ad0e1f36375bb; 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 builds before 443fac3de65c76544b450b9f9903be8989150d55; from 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 before cdcfd662c67833d89ee3d912efde2eb67c8a7326; 876c9d3aeb989cf1961f2c228d309ba5dcfb1172 builds before 13ff543e0b2c713aedeaadadde686686e949dc78	CNA record

References

References

https://git.kernel.org/stable/c/68c92c991ddb75dfd3fd62a94a1d4d2dde44dc3c
https://git.kernel.org/stable/c/d865dd6de8295f2bfaa83f0f5d49d2bef1543065
https://git.kernel.org/stable/c/6576baa3fdbaa91fa75e4ba27095f4b8a27349a8
https://git.kernel.org/stable/c/b657cc98d7936c5d9ed7e0e1944ad0e1f36375bb
https://git.kernel.org/stable/c/443fac3de65c76544b450b9f9903be8989150d55
https://git.kernel.org/stable/c/cdcfd662c67833d89ee3d912efde2eb67c8a7326
https://git.kernel.org/stable/c/13ff543e0b2c713aedeaadadde686686e949dc78

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.