CVE-2026-27664

HIGH
7.5
CVSS Score
Published: March 26, 2026 at 02:03 PM UTC
Updated: June 17, 2026 at 10:27 AM UTC
2 products affected across 1 vendorCPCI85SICORE Base System

Using CPCI85 Central Processing/Communication by Siemens?

Get instant alerts when new vulnerabilities affect CPCI85 Central Processing/Communication - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

A vulnerability has been identified in CPCI85 Central Processing/Communication (All versions < V26.10), SICORE Base system (All versions < V26.10.0). The affected application contains an out-of-bounds write vulnerability while parsing specially crafted XML inputs. This could allow an unauthenticated attacker to exploit this issue by sending a malicious XML request, which may cause the service to crash, resulting in a denial-of-service condition.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < V26.10
Affected range stops below V26.10, so it looks safe — our inference, not a vendor statement
v < V26.10.0
Affected range stops below V26.10.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHsiemens
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-787

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card