Is there a patch available for CVE-2026-98594?

Yes, a patch is available for CVE-2026-98594. Update the affected software to the latest version immediately.

Linux CVE-2026-98594

EUVD-2026-103639

2026-10-18 Linux

GHSA-2vwq-f5h6-r9rw

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:

tg3: clean up PHYLIB resources on probe failure

tg3_get_invariants() can register an MDIO bus and connect a PHY for USE_PHYLIB devices. If tg3_init_one() later fails, its common error path releases the mappings and netdev without undoing those PHYLIB resources.

Disconnect the PHY and unregister the MDIO bus before the remaining teardown. Guard PHY cleanup with USE_PHYLIB to match tg3_phy_init(), and call tg3_mdio_fini() unconditionally to match tg3_mdio_init(). The existing IS_CONNECTED and MDIOBUS_INITED flags make both helpers safe when initialization only completed partially.

This issue was identified during our ongoing static-analysis research while reviewing kernel code.

Affected VersionsENISA

Linux 158d7abdae85e9ac43d99780c372d79c119f7626 <b6c0c757c65893ad7bb17e8bcf33cdd8257d7b3d

Linux patch: 7.2.9

Linux patch: 5.15.222

Linux 158d7abdae85e9ac43d99780c372d79c119f7626 <a449eedb3b1eb5b8b1f5ed116a1bfe85eaaf81df

Linux 2.6.27

Linux patch: 6.18.55

Linux patch: 6.12.112

Linux patch: 5.10.271

Linux 158d7abdae85e9ac43d99780c372d79c119f7626 <ce86d6929d03e6b0abcb781dfa50f9f0816bff78

Linux patch: 6.1.189

Linux patch: 0

Linux 158d7abdae85e9ac43d99780c372d79c119f7626 <e766321288b507afb70d2bfef6ba443213329f79

Linux 158d7abdae85e9ac43d99780c372d79c119f7626 <0844402326d4e48a28688f93ec6442e93bb442fa

Linux patch: 6.6.158

Linux 158d7abdae85e9ac43d99780c372d79c119f7626 <6515c41503eef849abd2c7364f34e4bb25110f90

Linux 158d7abdae85e9ac43d99780c372d79c119f7626 <d2abb0013b933d59ee441185df0eca9e8c0b33eb

Linux 158d7abdae85e9ac43d99780c372d79c119f7626 <a92e1a412c53dc0d9ad639e7abf8b3fc70a5b6ad

Linux patch: 7.3-rc5

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 - 15:19 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.