Is there a patch available for EUVD-2026-93095?

Yes, a patch is available for EUVD-2026-93095. Update the affected software to the latest version immediately.

Linux EUVD-2026-93095

| CVE-2026-98167

2026-10-06 Linux

GHSA-wwfg-4wrm-v6qx

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:

smb: client: fix server->total_read for compound encrypted PDUs

In receive_encrypted_standard(), server->total_read is left at the full decrypted frame size when walking sub-PDUs of a compound encrypted frame. As a result, cifs_handle_standard() passes this full size to smb2_check_message(), causing the PDU length guards to incorrectly validate the entire compound frame instead of the current sub-PDU.

This allows truncated non-last sub-PDUs to bypass length validation, leading to out-of-bounds reads in smb2_get_data_area_len().

Fix this by setting server->total_read to the true length of the current sub-PDU: next_cmd for non-last sub-PDUs, and the remaining pdu_length for the last one.

Affected VersionsENISA

Linux patch: 6.12.112

Linux b24df3e30cbf48255db866720fb71f14bf9d2f39 <ebb8a075fdc7af3d196a4f158a0e18dbc394c0e3

Linux patch: 0

Linux 4.19

Linux patch: 6.18.54

Linux b24df3e30cbf48255db866720fb71f14bf9d2f39 <a46eb242e9eef3a3897d166748b23303c516e870

Linux patch: 6.1.189

Linux patch: 7.3-rc4

Linux b24df3e30cbf48255db866720fb71f14bf9d2f39 <282b72f9a7ef31296c48366db4128882999cc048

Linux patch: 6.6.158

Linux b24df3e30cbf48255db866720fb71f14bf9d2f39 <e78fc1d240b27349b45a0f1c3e3c2c401d7e230d

Linux b24df3e30cbf48255db866720fb71f14bf9d2f39 <8703539d22fdbc13dd2db090ee199c3a427b8ea0

Linux patch: 7.2.8

Linux b24df3e30cbf48255db866720fb71f14bf9d2f39 <f73726b83e4756fdaa099e1bc1143293bd57ad79

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 88% 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.