CVE-2026-27664
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductCPCI85 Central Processing/Communication
PublishedMar 26, 2026
First seenMar 26, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- Siemens CPCI85 Central Processing/CommunicationV26.10 or later
- Siemens SICORE Base systemV26.10.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Siemens CPCI85 Central Processing/Communication | v < V26.10 | V26.10 |
| Siemens SICORE Base system | v < V26.10.0 | V26.10.0 |
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