CVE-2019-5077 is a critical denial-of-service vulnerability affecting the iocheckd service in WAGO PFC 100 and PFC 200 firmware versions. An unauthenticated attacker can send specially crafted packets to cause the device to enter an error state, halting all network communications. With a CVSS score of 9.1, this vulnerability is easily exploitable over the network with low attack complexity, leading to a complete loss of availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the potential for significant disruption remains high.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
03.00.39\(12\)CPE matchmatch criteria | cpe:2.3:o:wago:pfc_200_firmware:03.00.39\(12\):*:*:*:*:*:*:* | ||
03.01.07\(13\)CPE matchmatch criteria | cpe:2.3:o:wago:pfc_200_firmware:03.01.07\(13\):*:*:*:*:*:*:* | ||
03.00.39\(12\)CPE matchmatch criteria | cpe:2.3:o:wago:pfc_100_firmware:03.00.39\(12\):*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.