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CVE Vulnerability Details :
CVE-2026-27663
PUBLISHED
More InfoOfficial Page
Assigner-siemens
Assigner Org ID-cec7a2ec-15b4-4faf-bd53-b40f371f3a77
View Known Exploited Vulnerability (KEV) details
Published At-26 Mar, 2026 | 14:03
Updated At-14 Apr, 2026 | 18:24
Rejected At-
▼CVE Numbering Authority (CNA)

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.

Affected Products
Vendor
Siemens AGSiemens
Product
CPCI85 Central Processing/Communication
Default Status
unknown
Versions
Affected
  • From 0 before V26.10 (custom)
Vendor
Siemens AGSiemens
Product
RTUM85 RTU Base
Default Status
unknown
Versions
Affected
  • From 0 before V26.10 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-770CWE-770: Allocation of Resources Without Limits or Throttling
Type: CWE
CWE ID: CWE-770
Description: CWE-770: Allocation of Resources Without Limits or Throttling
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.07.1HIGH
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
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 4.0
Base score: 7.1
Base severity: HIGH
Vector:
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://cert-portal.siemens.com/productcert/html/ssa-246443.html
N/A
Hyperlink: https://cert-portal.siemens.com/productcert/html/ssa-246443.html
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
2. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
http://seclists.org/fulldisclosure/2026/Apr/6
N/A
Hyperlink: http://seclists.org/fulldisclosure/2026/Apr/6
Resource: N/A
Details not found