Allocation of Resources Without Limits or Throttling in CPCI85 and RTUM85 RTU Base - CVE-2026-27663
Published: March 30, 2026
Vulnerability identifier: #VU124670
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-27663
CWE-ID: CWE-770
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Siemens
Affected software:
CPCI85
RTUM85 RTU Base
CPCI85
RTUM85 RTU Base
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to allocation of resources without limits or throttling within remote operation mode. A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.
How to mitigate CVE-2026-27663
Install updates from vendor's website.