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Vulnerability ID

CVE-2026-23340

AI Exploitable

Race condition in net/sched

ProductLinux kernel

CVSS 3.1High7.8

EPSS0.12%

Has public PoCNo

AI Exploitability

A working PoC was successfully generated by AI

Working AI PoC: Yes
Cheapest run: $25.60
Fastest run: 2.3 hr

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Overview

net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs When shrinking the number of real tx queues, netif_set_real_num_tx_queues() calls qdisc_reset_all_tx_gt() to flush qdiscs for queues which will no longer be used.

CWE: CWE-416
Weakness: Use After Free
Component: net/sched
Impact: Not stated
Published: 2026-03-25
Fixed version: 7.0

Risk factors

In-the-WildNot observed

CISA KEVNot listed

Public ExploitNone known

Ransomware useNone known

Severity

CVSS 3.1Only version published

7.8High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability

Attack VectorLocal

ComplexityLow

Privileges RequiredLow

User InteractionNone

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

EPSS

Chance of exploitation in the next 30 days

0.12%

SSVC

Stakeholder-specific vulnerability categorization

Not scored. CISA publishes an SSVC decision for a subset of CVEs.