How severe is CVE-2019-18202?

CVE-2019-18202 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-18202 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18202?

CVE-2019-18202 affects Wago Pfc Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-18202?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-18202 published?

CVE-2019-18202 was published on 2019-10-19 and last updated on 2026-06-17.

CVE-2019-18202

CVE-2019-18202 is a medium-severity vulnerability in Wago Pfc Firmware with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Wago Pfc Firmware
Published: 2019-10-19
Last modified: 2026-06-17

Description

Information Disclosure is possible on WAGO Series PFC100 and PFC200 devices before FW12 due to improper access control. A remote attacker can check for the existence of paths and file names via crafted HTTP requests.

Frequently asked questions

What is CVE-2019-18202?: Information Disclosure is possible on WAGO Series PFC100 and PFC200 devices before FW12 due to improper access control. A remote attacker can check for the existence of paths and file names via crafted HTTP requests.
How severe is CVE-2019-18202?: CVE-2019-18202 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-18202 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18202?: CVE-2019-18202 affects Wago Pfc Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-18202?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-18202 published?: CVE-2019-18202 was published on 2019-10-19 and last updated on 2026-06-17.

References

https://cert.vde.com/de-de/advisories/vde-2019-017

Affected products (1)

cpe:2.3:o:wago:pfc_firmware:*:*:*:*:*:*:*:*

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