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High 7.5
CODESYS V3: CmpBlkDrvTcp allows unauthenticated attackers to block all its available TCP connections
In CmpBlkDrvTcp of CODESYS V3 in multiple versions an uncontrolled ressource consumption allows an unauthorized attacker to block new TCP connections. Existing connections are not affected.
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High 7.5
Insecure transmission of credentials
In the CODESYS Development System multiple components in multiple versions transmit the passwords for the communication between clients and servers unprotected.
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High 7.5
Special HTTP(s) Requests can cause a buffer-read causing a crash of the webserver and the runtime system.
A remote, unauthenticated attacker can send a specific crafted HTTP or HTTPS requests causing a buffer over-read resulting in a crash of the webserver of the CODESYS Control runtime system.
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High 7.5
Communication Components in multiple CODESYS products vulnerable to communication channel disruption
An unauthenticated, remote attacker can disrupt existing communication channels between CODESYS products by guessing a valid channel ID and injecting packets. This results in the communication channel to be closed.
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High 8.1
A component of the CODESYS Control runtime system allows read and write access to configuration files
A remote, authenticated attacker could utilize the control program of the CODESYS Control runtime system to use the vulnerability in order to read and modify the configuration file(s) of the affected products.
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High 7.1
Untrusted Pointer Dereference in multiple CODESYS products can lead to a DoS.
An authenticated, remote attacker can gain access to a dereferenced pointer contained in a request. The accesses can subsequently lead to local overwriting of memory in the CmpTraceMgr, whereby the attacker can neither gain the values read internally nor cont…
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Medium 6.5
Null Pointer Dereference in multiple CODESYS products can lead to a DoS.
An authenticated remote attacker can cause a null pointer dereference in the CmpSettings component of the affected CODESYS products which leads to a crash.