Is there a patch available for CVE-2026-74389?

Yes, a patch is available for CVE-2026-74389. Update the affected software to the latest version immediately.

Linux CVE-2026-74389

EUVD-2026-59536

2026-08-15 Linux

GHSA-r243-5f6v-4cpg

Denial Of Service Linux

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Awaiting Data No severity or threat signals available yet. Label will update when CVSS score is published or threat intelligence arrives. 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:

RDMA/hns: Fix log flood after cmd_mbox failure

hns_roce_cmd_mbox() is the command interface between driver and hardware. When hardware is abnormal, the unlimited error printings after hns_roce_cmd_mbox() failure will cause log flood and even system crash.

Replace ibdev_err() and ibdev_warn() with their ratelimited versions in the error handling path after hns_roce_cmd_mbox() (and its wrappers hns_roce_create_hw_ctx/hns_roce_destroy_hw_ctx) fails.

Affected VersionsENISA

Linux 9a4435375cd151e07c0c38fa601b00115986091b <f3c9e84268e9fa613d40d6c138fb6969c35879b5

Linux 9a4435375cd151e07c0c38fa601b00115986091b <bbd97d71e53e551890e4115ad9de46b5f2ac0858

Linux patch: 0

Linux patch: 6.18.40

Linux 9a4435375cd151e07c0c38fa601b00115986091b <66f44ec974ab372e4e1ee9eac4245237c94e8f68

Linux patch: 6.12.97

Linux 9a4435375cd151e07c0c38fa601b00115986091b <7d9fbee252f84de3e6947a40eec01481c9d8afbb

Linux 4.9

Linux patch: 7.2-rc1

Linux patch: 7.1.5

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

Aug 15, 2026 - 07:19 EUVD

CVE Published

Aug 15, 2026 - 05:59 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 94% exploitable

Data Quality

1 sources

Confidence: Low

EUVD

CVE.org

EPSS

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.