CVE intelligence

CVE-2026-98890

Vulnerability intelligence

Published Oct 23, 2026Sources checked Oct 23, 2026

N/ACVSS not listedScore unavailable

What this means

Review the available evidence

CVE-2026-98890. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Oct 24, 2026

Release Notes

CISA KEVNot listedBased on the latest collected catalog

EPSSUnavailableNo current score collected

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-98890?

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.

Source: NVD