Modicon M262 Firmware
Monthly
Partial Denial of Service against Schneider Electric Modicon M241, M251, and M262 programmable logic controllers (PLCs) is achievable by unauthenticated remote attackers via the Machine Expert programming protocol. Exploitation requires only network reachability to the affected PLC - no credentials or user interaction - allowing an attacker to send malformed payloads that exhaust active communication channels through improper resource release (CWE-404). No public exploit code exists and EPSS is very low (0.05%), but the network-accessible attack surface with zero authentication in OT environments elevates operational risk beyond the Medium CVSS rating suggests.
Scripting') vulnerability exists that could cause a vulnerability leading to a cross-site scripting condition where attackers can have a victim’s browser run arbitrary JavaScript when they visit a. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Partial Denial of Service against Schneider Electric Modicon M241, M251, and M262 programmable logic controllers (PLCs) is achievable by unauthenticated remote attackers via the Machine Expert programming protocol. Exploitation requires only network reachability to the affected PLC - no credentials or user interaction - allowing an attacker to send malformed payloads that exhaust active communication channels through improper resource release (CWE-404). No public exploit code exists and EPSS is very low (0.05%), but the network-accessible attack surface with zero authentication in OT environments elevates operational risk beyond the Medium CVSS rating suggests.
Scripting') vulnerability exists that could cause a vulnerability leading to a cross-site scripting condition where attackers can have a victim’s browser run arbitrary JavaScript when they visit a. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.