SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-13992

The WebUI of PHOENIX CONTACT FL SWITCH 3xxx, 4xxx, 48xx versions 1.0 to 1.34 allows for plaintext transmission (HTTP) of user credentials by default.

CRITICAL 9.8EPSS 1.11%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.11%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The WebUI of PHOENIX CONTACT FL SWITCH 3xxx, 4xxx, 48xx versions 1.0 to 1.34 allows for plaintext transmission (HTTP) of user credentials by default.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.11% probability · 66th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-311
Affected
phoenixcontact/fl switch 3005 firmware · phoenixcontact/fl switch 3005t firmware · phoenixcontact/fl switch 3004t-fx firmware · phoenixcontact/fl switch 3004t-fx st firmware · phoenixcontact/fl switch 3008 firmware · phoenixcontact/fl switch 3008t firmware · phoenixcontact/fl switch 3006t-2fx firmware · phoenixcontact/fl switch 3006t-2fx st firmware · phoenixcontact/fl switch 3012e-2sfx firmware · phoenixcontact/fl switch 3016e firmware · phoenixcontact/fl switch 3016 firmware · phoenixcontact/fl switch 3016t firmware · phoenixcontact/fl switch 3006t-2fx sm firmware · phoenixcontact/fl switch 4008t-2sfp firmware · phoenixcontact/fl switch 4008t-2gt-4fx sm firmware · phoenixcontact/fl switch 4008t-2gt-3fx sm firmware · phoenixcontact/fl switch 4808e-16fx lc-4gc firmware · phoenixcontact/fl switch 4808e-16fx sm-4gc firmware · phoenixcontact/fl switch 4808e-16fx sm st-4gc firmware · phoenixcontact/fl switch 4808e-16fx st-4gc firmware · +9 more
Source
cve@mitre.org
EPSS trend
0%3%5%27 October 2026: 1.11%27 October 202627 October 2026

EPSS 1.1% 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.