CVE-2018-7794 describes a Denial of Service vulnerability (CWE-754) affecting specific versions of Schneider Electric Modicon M580, M340, Quantum, and Premium controllers. This flaw allows an unauthenticated attacker to cause a system crash by sending Modbus TCP requests with invalid data indices. Rated 7.5 HIGH on the CVSS scale, the vulnerability is network-exploitable with 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.