CODESYS V3: CmpBlkDrvTcp allows unauthenticated attackers to block all its available TCP connections
CVE-2022-30791

7.5HIGH

Key Information:

Vendor

Codesys

Status
Codesys Control Rte (sl)
Codesys Control Rte (for Beckhoff Cx) Sl
Codesys Control Win (sl)
Codesys Gateway
Vendor
CVE Published:
11 July 2022

What is CVE-2022-30791?

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.

Affected Version(s)

CODESYS Control for BeagleBone SL V3

CODESYS Control for Beckhoff CX9020 SL V3

CODESYS Control for emPC-A/iMX6 SL V3

References

https://customers.codesys.com/index.php?eID=dumpFile&t=f&...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.