Description
CWE-404 Improper Resource Shutdown or Release vulnerability exists that could cause partial Denial of Service on Machine Expert protocol when an unauthenticated attacker sends malicious payload to occupy active communication channels.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Schneider Electric | Modicon M241/M251 | Versions prior to 5.4.13.12 | — |
| Schneider Electric | Modicon M262 | Versions prior to 5.4.10.12 | — |
Advisories 2
- SEVD-2026-069-01 Improper Resource Shutdown or Release vulnerability in Multiple Products Schneider Electric CPCERT · Mar 31, 2026
- ICSA-26-078-01 Schneider Electric Modicon M241, M251, and M262 CISA ICS & IT advisories · Mar 19, 2026