SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-14023

An Improper Input Validation issue was discovered in Siemens SIMATIC PCS 7 V8.1 prior to V8.1 SP1 with WinCC V7.3 Upd 13, and V8.2 all versions.

MEDIUM 4.9EPSS 3.67%

Does this matter?

Lower severity and a low EPSS score (3.67%). Track it; it rarely justifies an emergency change on its own.

Description

An Improper Input Validation issue was discovered in Siemens SIMATIC PCS 7 V8.1 prior to V8.1 SP1 with WinCC V7.3 Upd 13, and V8.2 all versions. The improper input validation vulnerability has been identified, which may allow an authenticated remote attacker who is a member of the administrators group to crash services by sending specially crafted messages to the DCOM interface.

CVSS 3.1
4.9 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS
3.67% probability · 90th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-20
Affected
siemens/simatic pcs7 · siemens/simatic wincc
Source
ics-cert@hq.dhs.gov
EPSS trend
0%3%5%27 October 2026: 3.67%27 October 202627 October 2026

EPSS 3.7% 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.

References

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