CVE-2026-8741

LOW EPSS 19.9%
Published May 17, 20261mo ago · Modified Jun 17, 20261w ago
1.3 CVSS 4.0
Low
Find Similar
Published May 17, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

A vulnerability has been found in EMQX up to 6.2.0. This affects an unknown function of the file apps/emqx/src/emqx_persistent_session_ds.erl of the component QoS 2 PUBLISH Packet Handler. Such manipulation leads to race condition. The attack may be performed from remote. A high complexity level is associated with this attack. The exploitability is reported as difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure.

CVSS Details

Base Score
1.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
19.9% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-362

Affected Products 1

VendorProductVersionRange
emqxemqx*≥5.0.0  –  ≤6.2.0

References 5

  • github.com https://github.com/Pathfind-tama/Report_EMQX_MQTT
    Third Party Advisory
  • github.com https://github.com/Pathfind-tama/Report_EMQX_MQTT/blob/main/MQTT%20QoS%202%20Message%20Duplication%20in%20Persistent%20Sessions.md
    ExploitMitigationThird Party Advisory
  • vuldb.com https://vuldb.com/submit/809931
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/vuln/364329
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/vuln/364329/cti
    Permissions RequiredVDB Entry

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.