Is there a patch available for CVE-2026-98188?

Yes, a patch is available for CVE-2026-98188. Update the affected software to the latest version immediately.

Linux CVE-2026-98188

EUVD-2026-93116

2026-10-06 Linux

GHSA-4pxx-93w9-mj25

Buffer Overflow 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: p54: validate curve data length in the calibration curve converters

p54_convert_rev0() and p54_convert_rev1() read calibration curve data from the device-supplied EEPROM entry using channel and points-per-channel counts taken verbatim from that same entry, so an entry that declares more data than it carries drives an out-of-bounds read past the EEPROM buffer (verified with a KASAN reproducer of the conversion loop). The sibling converters p54_convert_output_limits() and p54_convert_db() already validate their counts against the entry length; this path was missed.

Reject the entry when the counts do not fit in the entry data.

Affected VersionsENISA

Linux eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <3bdcc4d61212b001b8752d80036509b4974ce16c

Linux eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <b0c906107150b16925ee66da09127259864c7f36

Linux patch: 6.1.189

Linux eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <ce858fa6b8a214dee5adb82358885fa024cdd887

Linux patch: 7.2.8

Linux patch: 6.6.158

Linux eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <4d767d6f8753db22bfc14c2724bd9cee677ffb03

Linux patch: 5.15.222

Linux patch: 7.3-rc4

Linux patch: 6.18.54

Linux eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <03d313e3dfb49a44c10a5c423452967694fb85e2

Linux eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <42f4b03971f9d6329c4cbd1ea5155210d16ab65b

Linux eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <41cdf14bf4b52fbe4673a172c2a6ad756cb08111

Linux patch: 0

Linux eff1a59c48e3c6a006eb4fe5f2e405a996f2259d <81084c967c18233b19799a0c3352ebac043f31e2

Linux patch: 5.10.271

Linux patch: 6.12.112

Linux 2.6.24

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

0.2%

Top 89% exploitable

Threat Intel

1 sources

Data Quality

4 sources

Confidence: Medium

EUVD

CVE.org

EPSS NEWS MSRC

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 0.2%

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

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.