CVE-2018-7857 describes an Uncaught Exception vulnerability (CWE-248) in Schneider Electric Modicon M580, M340, Quantum, and Premium controllers. This flaw allows an unauthenticated attacker to cause a Denial of Service (DoS) by writing out-of-bounds variables to the controller via Modbus. Rated 7.5 HIGH, this vulnerability is network-exploitable with low attack complexity and no user interaction required, leading to high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.20CPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_premium_firmware:*:*:*:*:*:*:*:* | ||
< 3.60CPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_quantum_firmware:*:*:*:*:*:*:*:* | ||
< 3.01CPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:* | ||
< 2.80CPE 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.