SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-6867

A vulnerability was discovered in Siemens SIMATIC WinCC (V7.3 before Upd 11 and V7.4 before SP1), SIMATIC WinCC Runtime Professional (V13 before SP2 and V14 before SP1), SIMATIC WinCC (TIA Portal) Professional (V13 before SP2 and V14 before SP1) that…

MEDIUM 4.9EPSS 1.92%

Does this matter?

Lower severity and a low EPSS score (1.92%). Track it; it rarely justifies an emergency change on its own.

Description

A vulnerability was discovered in Siemens SIMATIC WinCC (V7.3 before Upd 11 and V7.4 before SP1), SIMATIC WinCC Runtime Professional (V13 before SP2 and V14 before SP1), SIMATIC WinCC (TIA Portal) Professional (V13 before SP2 and V14 before SP1) that could allow an authenticated, remote attacker who is member of the "administrators" group to crash services by sending specially crafted messages to the DCOM interface.

CVSS 3.0
4.9 MEDIUMCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS
1.92% probability · 80th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-787, CWE-20
Affected
siemens/simatic wincc · siemens/simatic wincc \(tia portal\) · siemens/simatic wincc runtime
Source
productcert@siemens.com
EPSS trend
0%3%5%27 October 2026: 1.92%27 October 202627 October 2026

EPSS 1.9% 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.