Linux EUVD-2026-108840

| CVE-2026-99045

2026-10-23 Linux

GHSA-5hch-2jpc-2mcv

Information Disclosure Linux

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Monitor Track and reassess. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).

No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisCVE.org

In the Linux kernel, the following vulnerability has been resolved:

ibmveth: h_free logical LAN on open-fail after register

ibmveth_open() registers the logical LAN, then allocates the RX buffer pools. A pool failure jumps to out_free_buffer_pools without h_free_logical_lan(), so PHYP still owns the buffer-list page when it is unmapped. request_irq() failure already issued the hypercall before taking the same label.

Move that h_free to the shared post-register unwind so both paths deregister before the buffer list is unmapped.

Affected VersionsENISA

Linux patch: 7.3

Linux d43732ce021f4244a4c53a45d57ad0c13c30ed94 <d24fdec1413c656d29298097926e77542785ca0c

Linux d43732ce021f4244a4c53a45d57ad0c13c30ed94 <a065bd31ec462f6f9c267026b708dd020f122723

Linux d43732ce021f4244a4c53a45d57ad0c13c30ed94 <decb4d4ead2c71ef698727734ab5024a872eb372

Linux d43732ce021f4244a4c53a45d57ad0c13c30ed94 <af0524bf4ce1a4cbd2946aa81751582951cfcab5

Linux patch: 6.12.113

Linux patch: 0

Linux patch: 6.6.160

Linux patch: 7.2.11

Linux patch: 6.18.57

Linux 4.13

Linux d43732ce021f4244a4c53a45d57ad0c13c30ed94 <c54bbdf6f0731102a4bf7f5e4ee535b3ea415996

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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Threat Intelligence Overview

EPSS Score

0.2%

Top 90% 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 No

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.