CVE-2018-7855 describes a Denial of Service vulnerability (CWE-248 Uncaught Exception) affecting all versions of Schneider Electric Modicon M580, M340, Quantum, and Premium controllers. This flaw allows an unauthenticated attacker to cause a DoS by sending invalid breakpoint parameters via Modbus. Rated 7.5 HIGH on the CVSS scale, it presents a low-complexity network attack with no user interaction required, leading to high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_premium_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_quantum_firmware:-:*:*:*:*:*:*:* | ||
< 3.10CPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:* | ||
< 2.90CPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_m580_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.