CVE-2019-6841 is a Denial of Service vulnerability affecting Schneider Electric Modicon M580 (firmware prior to V3.10), Modicon M340 (all firmware), and Modicon BMxCRA/140CRA modules (all firmware). It occurs when attempting a firmware upgrade via FTP with an empty firmware package. This vulnerability has a CVSS score of 4.9 (Medium), indicating a network-based attack with low complexity that requires high privileges to execute, leading to a complete loss of availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or KEV listing. Community discussion and media coverage are minimal, with only one article from SecurityWeek.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_m580_firmware:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_bmxcra_firmware:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_140cra_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.