Is there a patch available for EUVD-2026-103958?

Yes, a patch is available for EUVD-2026-103958. Update the affected software to the latest version immediately.

Linux EUVD-2026-103958

| CVE-2026-98704

2026-10-18 Linux

GHSA-vrf9-cxgg-qw6c

Information Disclosure Linux

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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: mac80211: keep fallback association elements alive

Associating to a non-transmitted MBSSID profile reads freed memory while determining the operating channel and applying HT capabilities.

When an association response omits WMM, HT, or VHT information, ieee80211_assoc_config_link() parses the cached BSS IEs and copies the missing element pointers out of that fallback parse. For a non-transmitted MBSSID profile those pointers refer to merged-profile storage owned by the parse object, and the fallback block frees that object at its end. The copied pointers are used afterwards to determine the operating channel, configure bandwidth, and apply HT capabilities.

Keep the fallback parse result alive until association setup finishes.

[reorder variable declaration]

Affected VersionsENISA

Linux patch: 7.3-rc6

Linux patch: 6.18.56

Linux patch: 0

Linux 5023b14cf4df4d22e1a80738167f3438c9e62e5f <a10a2f80476d166fd81c361ec0319493671b694e

Linux patch: 7.2.10

Linux 5023b14cf4df4d22e1a80738167f3438c9e62e5f <0878594c5806dd29fa5e16cc026ce19158afdad2

Linux 5023b14cf4df4d22e1a80738167f3438c9e62e5f <1d9644753d46c86b4e5c05bd6d9d35339ea27331

Linux 5.2

Linux 5023b14cf4df4d22e1a80738167f3438c9e62e5f <d0183cd1f6a2dba9e63be20af2f65093c9c8d121

Linux patch: 6.12.113

Affected Packages

euvd linux no fix

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 18, 2026 - 17:19 EUVD

CVE Published

Oct 18, 2026 - 15:46 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 94% 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.