An issue was discovered in Wind River VxWorks before 6.5. There is a possible heap overflow in dhcp client.

A vulnerability has been identified in SINAMICS PERFECT HARMONY GH180 Drives MLFB 6SR32..-.....-.... MLFB 6SR4...-.....-.... MLFB 6SR5...-.....-.... With option A30 (HMIs 12 inches or larger) (All versions), SINAMICS PERFECT HARMONY GH180 Drives MLFB 6SR325.-.....-.... (High Availability) (All versions). The affected device contains a vulnerability that could allow an unauthenticated attacker to restore the affected device to a point where predefined application and operating system protection mechanisms are not in place. Successful exploitation requires physical access to the system, but no system privileges and no user interaction. An attacker could use the vulnerability to compromise confidentialiy, integrity and availability of the device. At the time of advisory publication no public exploitation of this security vulnerability was known.

A vulnerability has been identified in SINAMICS PERFECT HARMONY GH180 with NXG I control, MLFBs: 6SR2...-, 6SR3...-, 6SR4...- (All Versions with option G21, G22, G23, G26, G28, G31, G32, G38, G43 or G46), SINAMICS PERFECT HARMONY GH180 with NXG II control, MLFBs: 6SR2...-, 6SR3...-, 6SR4...- (All Versions with option G21, G22, G23, G26, G28, G31, G32, G38, G43 or G46). An improperly configured Parameter Read/Write execution via Field bus network may cause the controller to restart. The vulnerability could be exploited by an attacker with network access to the device. Successful exploitation requires no privileges and no user interaction. An attacker could use the vulnerability to compromise the availability of the affected system. At the time of advisory publication no public exploitation of this security vulnerability was known.

A vulnerability has been identified in SINAMICS PERFECT HARMONY GH180 with NXG I control, MLFBs: 6SR2...-, 6SR3...-, 6SR4...- (All Versions with option G28), SINAMICS PERFECT HARMONY GH180 with NXG II control, MLFBs: 6SR2...-, 6SR3...-, 6SR4...- (All Versions with option G28). A denial of service vulnerability exists in the affected products. The vulnerability could be exploited by an attacker with network access to the device. Successful exploitation requires no privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the affected system. At the time of advisory publication no public exploitation of this security vulnerability was known.