CVE-2019-5135

mediumpriority · track · 21OT risk · elevatedEPSS 0.010 · 64 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.05% (64th) EPSS

CVSS 5 · medium

Is it mine?

12 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · wago_psirt

EPSS · scored 2026-10-23

An exploitable timing discrepancy vulnerability exists in the authentication functionality of the Web-Based Management (WBM) web application on WAGO PFC100/200 controllers. The WBM application makes use of the PHP crypt() function which can be exploited to disclose hashed user credentials. This affects WAGO PFC200 Firmware version 03.00.39(12) and version 03.01.07(13), and WAGO PFC100 Firmware version 03.00.39(12).

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedwago_psirt
Use strong passwords for all user accounts, especially for administrative user accounts on the device. Follow the instructions in WAGOs handbook Cyber Security for Controller Restrict network access to the device. Do not directly connect the device to the internet Disable unused TCP/UDP-ports Solution Update the devices to standard firmware 15.

cvss

Technical severity, 0–10. One row per scoring source.

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · WAGO PSIRT DE

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-327USprimaryCWE-203US

affected products (12)

Products and version ranges known to be affected.

WAGO WAGO PFC100 Firmware≤ version 03.00.39(12)enisa_euvdEU
WAGO WAGO PFC200 Firmware≤ version 03.01.07(13)enisa_euvdEU
WAGO WAGO PFC200 Firmware≤ version 03.00.39(12)enisa_euvdEU
wago pfc100 firmware= 03.00.39(12)nvdUScpe:2.3:o:wago:pfc100_firmware:*:*:*:*:*:*:*:*
wago pfc200 firmware= 03.00.39(12)nvdUScpe:2.3:o:wago:pfc200_firmware:*:*:*:*:*:*:*:*
wago pfc200 firmware= 03.01.07(13)nvdUScpe:2.3:o:wago:pfc200_firmware:*:*:*:*:*:*:*:*
Software FW05<=FW14 installed on Hardware PFC100all versionswago_psirtDE
Software FW05<=FW14 installed on Hardware PFC200all versionswago_psirtDE
Software FW05<=FW14 installed on Hardware Touch Panel 600all versionswago_psirtDE
Software FW15 installed on Hardware PFC100all versionsfixedwago_psirtDE
Software FW15 installed on Hardware PFC200all versionsfixedwago_psirtDE
Software FW15 installed on Hardware Touch Panel 600all versionsfixedwago_psirtDE

advisories (1)

Vendor and ecosystem advisories describing this.

VDE-2020-006WAGO: Web-Based Management Authentication Vulnerabilities2020-03-09csaf · wago_psirtDE
With special crafted requests it is possible to get sensitive information, in this case the password hashes, by measuring response delay. With a substantial amount of time this data can be used to calculate the passwords of the Web-Based Management users. In case of CVE 2019-5134, the password salt can also be extracted.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd wago_psirt NVD CVE.org MITRE

published 2020-03-11modified 2026-06-17

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+910 more

references (4)

External citations — patches, advisories, analysis.

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