SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-7850

A CWE-807: Reliance on Untrusted Inputs in a Security Decision vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause invalid information displayed in Unity Pro software.

MEDIUM 5.3EPSS 1.51%

Does this matter?

Lower severity and a low EPSS score (1.51%). Track it; it rarely justifies an emergency change on its own.

Description

A CWE-807: Reliance on Untrusted Inputs in a Security Decision vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause invalid information displayed in Unity Pro software.

CVSS 3.1
5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
1.51% probability · 74th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
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
EPSS trend
0%3%5%27 October 2026: 1.51%27 October 202627 October 2026

EPSS 1.5% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.