Out-of-bounds write in CPCI85 and SICORE Base system - CVE-2026-27664
Published: March 30, 2026
Vulnerability identifier: #VU124669
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-27664
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Siemens
Affected software:
CPCI85
SICORE Base system
CPCI85
SICORE Base system
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error while parsing specially crafted XML inputs. A remote attacker can trigger an out-of-bounds write and cause a denial of service condition on the target system.
How to mitigate CVE-2026-27664
Install updates from vendor's website.