HIGH SEVERITY

CVE-2019-6851

Modicon M580 Firmware vulnerability

CVSS
7.5
EPSS
29.9%
EPSS pct
98th
Exploited
No known
A CWE-538: File and Directory Information Exposure vulnerability exists in Modicon M580, Modicon M340, Modicon Premium , Modicon Quantum (all firmware versions), which could cause the disclosure of information from the controller when using TFTP protocol.
Affected vendor
Schneider Electric
Affected product
Modicon M580 Firmware
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
  • CWE-538 — Insertion of Sensitive Information into Externally-Accessible File
  • CWE-200 — Exposure of Sensitive Information
Published
2019-10-29

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 29.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2019-6851

  • Confirm whether Schneider Electric Modicon M580 Firmware is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-6851.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-6851

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