SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2016-8366

Webvisit in Phoenix Contact ILC PLCs offers a password macro to protect HMI pages on the PLC against casual or coincidental opening of HMI pages by the user.

EXPLOITHIGH 7.3EPSS 5.71%

Does this matter?

A public exploit is published in Exploit-DB and the impact is high, while EPSS rates exploitation at 5.7%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.

Description

Webvisit in Phoenix Contact ILC PLCs offers a password macro to protect HMI pages on the PLC against casual or coincidental opening of HMI pages by the user. The password macro can be configured in a way that the password is stored and transferred in clear text.

CVSS 3.0
7.3 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS
5.71% probability · 93th percentile
Public exploits
1 in Exploit-DB · first 11 October 2018
CISA KEV
Not listed
Weakness
CWE-312, CWE-255
Affected
phoenixcontact/ilc plcs firmware
Source
ics-cert@hq.dhs.gov
EPSS trend
0%5%10%21 September 2026: 7.17%22 September 2026: 5.66%27 October 2026: 5.71%21 September 202627 October 2026

EPSS moved from 7.2% on 21 September 2026 to 5.7% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-45586source ↗Phoenix Contact WebVisit 6.40.00 - Password Disclosurehardware · Photubiaswebapps11 October 2018no

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