Schweitzer Engineering Laboratories (SEL) SEL-2241, SEL-3505, and SEL-3530 RTAC master devices allow remote attackers to cause a denial of service (infinite loop) via a crafted DNP3 TCP packet.
Schweitzer Engineering Laboratories (SEL) SEL-2241, SEL-3505, and SEL-3530 RTAC master devices allow physically proximate attackers to cause a denial of service (infinite loop) via crafted input over a serial line.