Is there a patch available for CVE-2026-98184?

Yes, a patch is available for CVE-2026-98184. Update the affected software to the latest version immediately.

Linux CVE-2026-98184

EUVD-2026-93112

2026-10-06 Linux

GHSA-m63w-cm3m-w2gf

Buffer Overflow Linux

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Awaiting Data No severity or threat signals available yet. Label will update when CVSS score is published or threat intelligence arrives. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).

Patch available 0.3% exploitation probability (EPSS)

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AnalysisCVE.org

In the Linux kernel, the following vulnerability has been resolved:

wifi: mwifiex: prevent authentication frame length truncation

mwifiex_cfg80211_authenticate() derives the authentication frame length from req->ie_len and req->auth_data_len, both of type size_t, but stores it in a u16.

NL80211_ATTR_AUTH_DATA only has a minimum length policy. Since nla_len is a u16, a single attribute can carry up to 65531 bytes of payload, so the sum can exceed U16_MAX before it is assigned to pkt_len. The truncated pkt_len determines the skb frame area, while the copy length remains req->auth_data_len - 4, resulting in a heap buffer overflow.

For example, with auth_data_len equal to 65510 and no IEs, the sum is

It is truncated to 10 and then reduced by four to 6. The driver

appends only six bytes to the skb with skb_put(), but then copies 65506 user-provided bytes into the authentication body.

Reaching this path requires CAP_NET_ADMIN in the user namespace owning the network namespace, an up station netdev, and a suitable BSS/SAE authentication request.

Compute the length in size_t, reject values that cannot be represented by the firmware's u16 frame length field, and only then assign it to pkt_len.

Affected VersionsENISA

Linux patch: 7.3-rc4

Linux patch: 6.12.112

Linux 6.12

Linux 36995892c271cce5e2230bc165a06f109b117222 <877b61a67d5eb3e616478daf3908114b57feff1e

Linux 36995892c271cce5e2230bc165a06f109b117222 <25c45a2075cc00faed45f92a64bb172fb074a2ee

Linux patch: 6.18.54

Linux patch: 0

Linux 36995892c271cce5e2230bc165a06f109b117222 <fa00193eb991f92b007aefe7afb6a7566976dacf

Linux 36995892c271cce5e2230bc165a06f109b117222 <5747eaa38a7fcad48be2fd910b65008198b2b06c

Linux patch: 7.2.8

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 06, 2026 - 10:02 EUVD

CVE Published

Oct 06, 2026 - 08:44 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.3%

Top 82% exploitable

Data Quality

1 sources

Confidence: Low

EUVD

CVE.org

EPSS

VulDB

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 0.3%

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

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.