PT-2026-28356 · Unknown · Cpci85 Central Processing/Communication+1

Thomas Weber · Published 2026-03-26 · Updated 2026-04-16 · CVE-2026-27663

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions CPCI85 Central Processing/Communication versions prior to 26.10 RTUM85 RTU Base versions prior to 26.10

Description The affected application contains a denial-of-service (DoS) issue. The remote operation mode is susceptible to resource exhaustion 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.

Recommendations Update CPCI85 Central Processing/Communication to version 26.10 or later. Update RTUM85 RTU Base to version 26.10 or later.

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2026-27663

Affected Products

Cpci85 Central Processing/Communication

Rtum85 Rtu Base

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-27663 · Security Note
• https://twitter.com/syedaquib77/status/2039752705615266019 · Twitter Post
• http://seclists.org/fulldisclosure/2026/Apr/6 · Note
• https://twitter.com/SecurityAr58409/status/2044910466078589180 · Twitter Post
• https://twitter.com/CVEnew/status/2038135187004162531 · Twitter Post
• https://cert-portal.siemens.com/productcert/html/ssa-246443.html · Note
• https://twitter.com/syedaquib77/status/2039752707746009542 · Twitter Post