CVE-2026-27663highCWE-770

CVE-2026-27663: high-severity vulnerability in Siemens CPCI85 Central Processing/Communication

Published · Updated

Follow this CVE+ Monitor CPCI85 Central Processing/Communication+ Monitor RTUM85 RTU Base

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.1epss 0.3%
A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.10), RTUM85 RTU Base (All versions < V26.10). The affected application contains denial-of-service (DoS) vulnerability. The remote operation mode is susceptible to a resource exhaustion condition when subjected to a high volume of requests. Sending multiple requests can exhaust resources, preventing parameterization and requiring a reset or reboot to restore functionality.
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
Affected products
Siemens · CPCI85 Central Processing/CommunicationSiemens · RTUM85 RTU Base
Related CVEs — Siemens CPCI85 Central Processing/Communication

In the same product, most dangerous first.

CVE-2024-31485HIGHCVE-2024-31485EPSS 2.4%CVE-2026-54801HIGHCVE-2026-54801EPSS 0.6%CVE-2024-39601HIGHCVE-2024-39601EPSS 0.5%CVE-2024-31484HIGHCVE-2024-31484EPSS 0.5%CVE-2024-37998CRITICALCVE-2024-37998EPSS 0.5%CVE-2026-54798HIGHCVE-2026-54798EPSS 0.4%