#VU105720 Input validation error in SiPass integrated AC5102 and SiPass integrated ACC-AP - CVE-2025-27494

Vulnerability identifier: #VU105720

Vulnerability risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-27494

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SiPass integrated AC5102
Other software / Other software solutions
SiPass integrated ACC-AP
Other software / Other software solutions

Vendor: Siemens

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input for the pubkey endpoint of the REST API. A local administrator can inject arbitrary commands and gain elevated privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SiPass integrated AC5102: before 6.4.9

SiPass integrated ACC-AP: before 6.4.9

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External links
https://cert-portal.siemens.com/productcert/html/ssa-515903.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.