Is there a patch available for CVE-2026-98890?

Yes, a patch is available for CVE-2026-98890. Update the affected software to the latest version immediately.

Linux CVE-2026-98890

EUVD-2026-108684

2026-10-23 Linux

GHSA-65v2-4hr3-h5j6

Information Disclosure Linux

View

Monitor Track and reassess. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).

Patch available 0.2% exploitation probability (EPSS)

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AnalysisCVE.org

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.

Affected VersionsENISA

Linux patch: 7.2

Linux patch: 6.6.158

Linux patch: 6.18.53

Linux 0 <6.18.53

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <443fac3de65c76544b450b9f9903be8989150d55

Linux 0 <6.1.189

Linux 0 <5.10.271

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <13ff543e0b2c713aedeaadadde686686e949dc78

Linux patch: 5.15.222

Linux 0 <6.6.158

Linux 0 <6.12.111

Linux patch: 6.12.111

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b657cc98d7936c5d9ed7e0e1944ad0e1f36375bb

Linux 0 <5.15.222

Linux patch: 5.10.271

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <68c92c991ddb75dfd3fd62a94a1d4d2dde44dc3c

Linux patch: 6.1.189

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d865dd6de8295f2bfaa83f0f5d49d2bef1543065

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cdcfd662c67833d89ee3d912efde2eb67c8a7326

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6576baa3fdbaa91fa75e4ba27095f4b8a27349a8

Affected Packages

euvd linux fix: 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Exploit and PoC references, threat intelligence from 22 sources

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Lifecycle Timeline

Patch available

Oct 23, 2026 - 12:16 EUVD

CVE Published

Oct 23, 2026 - 11:37 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 89% exploitable

Data Quality

3 sources

Confidence: Low

EUVD

CVE.org

EPSS MSRC

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity Not scored yet

CISA KEV No

Public POC No

EPSS 0.2%

Patch available Yes

Active threat No

Deciding rule

No CVSS yet + weak signal (CWE or non-zero EPSS)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.