SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-6855

Incorrect Authorization vulnerability exists in EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20) , and Modicon M580 (all versions prior to V3.10), which could cause a…

HIGH 7.3EPSS 0.95%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.95%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Incorrect Authorization vulnerability exists in EcoStruxure Control Expert (all versions prior to 14.1 Hot Fix), Unity Pro (all versions), Modicon M340 (all versions prior to V3.20) , and Modicon M580 (all versions prior to V3.10), which could cause a bypass of the authentication process between EcoStruxure Control Expert and the M340 and M580 controllers.

CVSS 3.1
7.3 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS
0.95% probability · 59th percentile
CISA KEV
Not listed
Weakness
CWE-863
Affected
schneider-electric/ecostruxure control expert · schneider-electric/unity pro · schneider-electric/modicon m580 bmep584040 firmware · schneider-electric/modicon m580 bmeh584040 firmware · schneider-electric/modicon m580 bmep586040 firmware · schneider-electric/modicon m580 bmeh586040 firmware · schneider-electric/modicon m580 bmep581020 firmware · schneider-electric/modicon m580 bmep582020 firmware · schneider-electric/modicon m580 bmep582040 firmware · schneider-electric/modicon m580 bmep583020 firmware · schneider-electric/modicon m580 bmep583040 firmware · schneider-electric/modicon m580 bmep584020 firmware · schneider-electric/modicon m580 bmep585040 firmware · schneider-electric/modicon m580 bmeh582040 firmware · schneider-electric/modicon m580 bmep584040s firmware · schneider-electric/modicon m580 bmeh584040s firmware · schneider-electric/modicon m580 bmeh586040s firmware · schneider-electric/modicon m580 bmep582040s firmware · schneider-electric/modicon m340 bmxp3420302 firmware · schneider-electric/modicon m340 bmxp342020 firmware · +3 more
Source
cybersecurity@se.com

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