CVE-2019-6829 is an Uncaught Exception vulnerability affecting Schneider Electric Modicon M580 (firmware prior to V2.90) and M340 (firmware prior to V3.10) programmable logic controllers. This flaw allows an unauthenticated attacker to trigger a denial of service by writing to specific memory addresses over Modbus. Rated 7.5 HIGH on the CVSS scale, this vulnerability is easily exploitable over the network with low attack complexity, leading to a complete loss of availability for the affected controllers. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community attention and media coverage, indicating awareness within the cybersecurity landscape.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.90CPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_m580_firmware:*:*:*:*:*:*:*:* | ||
< 3.10CPE matchmatch criteria | cpe:2.3:o:schneider-electric:modicon_m340_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.
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.