CVE-2019-5184

mediumPriorität · verfolgen · 31EPSS 0.008 · 58. PerzentilDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.85% (58th) EPSS

CVSS 4.6 · medium

Is it mine?

7 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · wago_psirt

EPSS · bewertet 2026-10-27

An exploitable double free vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC 200. A specially crafted XML cache file written to a specific location on the device can cause a heap pointer to be freed twice, resulting in a denial of service and potentially code execution. An attacker can send a specially crafted packet to trigger the parsing of this cache file.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

Behobenwago_psirt
The I/O-Check service protocol is only needed during installation and commissioning, not during normal operations. It is highly recommended to disable the I/O-Check service after commissioning. This is the easiest and securest way to protect your device from the listed vulnerabilities. Regardless of the action described above, the vulnerabilities are expected to be fixed in FW16 Release in Q2/2020.
Mitigationwago_psirt
* Disable I/O-Check service. * Restrict network access to the device. * Do not directly connect the device to the internet. * Disable unused TCP/UDP-ports.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 4.6–7.8

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 6.4

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 1.8 · Auswirkung 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · WAGO PSIRT DE

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-415USprimärCWE-415US

betroffene Produkte (7)

Betroffene Produkte und Versionsbereiche.

n/a Wago≤ WAGO PFC200 Firmware version 03.02.02(14)enisa_euvdEU
wago pfc200 firmware= 03.02.02(14)nvdUScpe:2.3:o:wago:pfc200_firmware:*:*:*:*:*:*:*:*
Firmware <FW16 installed on Hardware 750-81xx/xxx-xxx (PFC100)alle Versionenwago_psirtDE
Firmware <FW16 installed on Hardware 750-82xx/xxx-xxx (PFC200)alle Versionenwago_psirtDE
Firmware <FW16 installed on Hardware 762-4xxxalle Versionenwago_psirtDE
Firmware <FW16 installed on Hardware 762-6xxxalle Versionenwago_psirtDE
Firmware <FW16 installed on Pepperl+Fuchs Hardware 762-5xxxalle Versionenwago_psirtDE

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

VDE-2020-011WAGO: Multiple Vulnerabilities in I/O-Check Service2020-03-09csaf · wago_psirtDE
An attacker needs an authorized login on the device in order to exploit the herein mentioned vulnerabilities. The reported vulnerabilities allow a local attacker with valid login credentials who is able to create files on the device to change the devices settings, e.g. default gateway address, time server etc. and potentially execute code.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd nvd wago_psirt NVD CVE.org MITRE

veröffentlicht 2020-03-23geändert 2026-06-17

verwandt (1,208)

Verwandte Einträge.

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A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgr…
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A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5.1 and iPadOS 13.5.1, macOS Catalina 10.15.5 Supplemental Update, tvOS 13.4.6…

+1203 weitere

Referenzen (4)

Externe Belege — Patches, Meldungen, Analysen.

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