Is there a patch available for EUVD-2026-108857?

Yes, a patch is available for EUVD-2026-108857. Update the affected software to the latest version immediately.

Linux EUVD-2026-108857

| CVE-2026-98901

2026-10-23 Linux

GHSA-6w2x-j37m-r6r9

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:

ksmbd: fix lease break and ack state handling

Do not skip valid lease states containing WRITE_CACHING when breaking level-II/read leases for writes and truncates.

Handle lease break acknowledgments according to the SMB2 rule that the acknowledged state must be a subset of the server's break target. Apply the acknowledged state directly and keep the break pending on failed ACKs.

Affected VersionsENISA

Linux patch: 6.18.53

Linux patch: 6.6.158

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <17699905a381621c1cee5b6528feb05acedc86a4

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5015191096db311759fef98769270336cd8b1324

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fba4653a0b4dc2f6d42600abe21fb326292f70ff

Linux patch: 6.12.111

Linux 0 <6.6.158

Linux 0 <6.12.111

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3251ea36df5eef58aa207fbee48849d89b922ea6

Linux patch: 7.2

Linux 0 <6.18.53

Affected Packages

euvd linux fix: 6.6.158, 6.12.111, 6.18.53

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 23, 2026 - 13:17 EUVD

CVE Published

Oct 23, 2026 - 11:54 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 89% exploitable

Data Quality

4 sources

Confidence: Medium

EUVD

CVE.org

EPSS 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

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.