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CVE-2019-5074: wago pfc_100_firmware Out-of-bounds Write

CVSS: 10.0v2.0HighModified
Published 18-12-2019Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2019-5074 is a high (CVSS 10.0) Out-of-bounds Write vulnerability in wago pfc_100_firmware. EPSS estimates a 3.28% chance of exploitation in the next 30 days, higher than 88.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
10.0/10
010
High · v2.0 (NVD)
EPSS score
3.28%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-12-2019
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An exploitable stack buffer overflow vulnerability exists in the iocheckd service ''I/O-Check'' functionality of WAGO PFC200 Firmware version 03.01.07(13), WAGO PFC200 Firmware version 03.00.39(12) and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets can cause a stack buffer overflow, resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

3.28%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

0.00 pp

From 3.28% on 20-09-2026

20-09-202620-10-2026
EPSS score
3.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Wago2 products

1 vendor · 2 products

References

1 links