VulnerabilityAnalyzed
CVE-2026-8741
A vulnerability has been found in EMQX up to 6.2.0.
LOW 1.3EPSS 0.28%
Does this matter?
Lower severity and a low EPSS score (0.28%). Track it; it rarely justifies an emergency change on its own.
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 4.0
- 1.3 LOWCVSS: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/M
- EPSS
- 0.28% probability · 21th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- emqx/emqx
- Source
- cna@vuldb.com
References
- https://github.com/Pathfind-tama/Report_EMQX_MQTTThird Party Advisory
- https://github.com/Pathfind-tama/Report_EMQX_MQTT/blob/main/MQTT%20QoS%202%20Message%20Duplication%20in%20Persistent%20Sessions.mdExploit, Mitigation, Third Party Advisory
- https://vuldb.com/submit/809931Third Party Advisory, VDB Entry
- https://vuldb.com/vuln/364329Third Party Advisory, VDB Entry
- https://vuldb.com/vuln/364329/ctiPermissions Required, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.