Is there a patch available for CVE-2026-98578?

Yes, a patch is available for CVE-2026-98578. Update the affected software to the latest version immediately.

Linux CVE-2026-98578

EUVD-2026-103623

2026-10-18 Linux

GHSA-mm2q-hf2x-48gq

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:

nfc: st21nfca: validate ISO15693 inventory length

The ISO15693 inventory helper removes a two-byte prefix without checking that it exists, then accepts a one-byte remainder before reading data[1] as the DSFID.

Require the prefix and at least two remaining bytes before copying the UID data and reading the DSFID.

Affected VersionsENISA

Linux patch: 7.2.9

Linux patch: 6.12.112

Linux 7974728094d35f38775417a26d8f30ea3602496a <57d183764f3002f9625ee4deeeb20716c519534e

Linux patch: 7.3-rc5

Linux 7974728094d35f38775417a26d8f30ea3602496a <a86987d03a4d39acdbe4533d83db4d656ea36c59

Linux 7974728094d35f38775417a26d8f30ea3602496a <9fa21b0f78adb514e3bd96a505ddb752e9727ff3

Linux patch: 6.18.55

Linux 7974728094d35f38775417a26d8f30ea3602496a <6353dae51bc9b3cad13c9d890b53311a46c96b4e

Linux patch: 5.15.222

Linux 7974728094d35f38775417a26d8f30ea3602496a <e47b2a350bb0ff123434ec5484c6dc3333b0727c

Linux patch: 6.1.189

Linux 7974728094d35f38775417a26d8f30ea3602496a <3af2ea4035581a1607d9830779c187a0c7e225aa

Linux 7974728094d35f38775417a26d8f30ea3602496a <7f2ea5ed588c03d481f0301e6c3d4240132383fb

Linux patch: 5.10.271

Linux 3.16

Linux patch: 0

Linux patch: 6.6.158

Linux 7974728094d35f38775417a26d8f30ea3602496a <fdd95e819d828c975aaeb258a3fed5dd7fd136d0

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 - 16:02 EUVD

CVE Published

Oct 18, 2026 - 15:18 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.