CVE-2019-6857 is an Improper Check for Unusual or Exceptional Conditions vulnerability affecting specific versions of Schneider Electric Modicon M580, M340, Quantum, and Premium controllers. This vulnerability allows an unauthenticated attacker to cause a Denial of Service (DoS) by sending specially crafted Modbus TCP requests to read specific memory blocks. With a CVSS score of 7.5 (HIGH), it presents a significant risk due to its network-based attack vector and low attack complexity, leading to high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.80CPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_m580_firmware:*:*:*:*:*:*:*:* | ||
< 3.01CPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:* | ||
< 3.20CPE matchmatch criteria | cpe:2.3:o:schneider-electric:tsxh5744m_firmware:*:*:*:*:*:*:*:* | ||
< 3.20CPE matchmatch criteria | cpe:2.3:o:schneider-electric:tsxh5724m_firmware:*:*:*:*:*:*:*:* | ||
< 3.20CPE matchmatch criteria | cpe:2.3:o:schneider-electric:tsxp576634m_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/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, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
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.