SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-6821

CWE-330: Use of Insufficiently Random Values vulnerability, which could cause the hijacking of the TCP connection when using Ethernet communication in Modicon M580 firmware versions prior to V2.30, and all firmware versions of Modicon M340, Modicon…

MEDIUM 6.5EPSS 1.93%

Does this matter?

Lower severity and a low EPSS score (1.93%). Track it; it rarely justifies an emergency change on its own.

Description

CWE-330: Use of Insufficiently Random Values vulnerability, which could cause the hijacking of the TCP connection when using Ethernet communication in Modicon M580 firmware versions prior to V2.30, and all firmware versions of Modicon M340, Modicon Premium, Modicon Quantum.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS
1.93% probability · 79th percentile
CISA KEV
Not listed
Weakness
CWE-330
Affected
schneider-electric/modicon m580 firmware · schneider-electric/modicon m340 firmware · schneider-electric/modicon quantum firmware · schneider-electric/modicon premium firmware
Source
cybersecurity@se.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.