SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-19279

A vulnerability has been identified in SIPROTEC 4 and SIPROTEC Compact relays equipped with EN100 Ethernet communication modules (All versions).

HIGH 7.5EPSS 1.59%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability has been identified in SIPROTEC 4 and SIPROTEC Compact relays equipped with EN100 Ethernet communication modules (All versions). Specially crafted packets sent to port 50000/UDP of the EN100 Ethernet communication modules could cause a Denial-of-Service of the affected device. A manual reboot is required to recover the service of the device. At the time of advisory publication no public exploitation of this security vulnerability was known to Siemens.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
1.59% probability · 74th percentile
CISA KEV
Not listed
Weakness
CWE-20
Affected
siemens/siprotec 4 · siemens/siprotec compact
Source
productcert@siemens.com

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