Multiple vulnerabilities in Microsoft Windows PrintWorkflowUserSvc

Published: 2025-01-14 | Updated: 2025-03-10

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2025-21235 CVE-2025-21234
CWE-ID	CWE-20
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	Windows Server Operating systems & Components / Operating system Windows Operating systems & Components / Operating system
Vendor	Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU102740

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-21235

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in Windows PrintWorkflowUserSvc. A local user can pass specially crafted input to the application and gain elevated privileges on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2016 10.0.14393.10 - 2025 10.0.26100.2605

Windows: 10 21H2 10.0.19041.3920 - 11 24H2 10.0.26100.2894

CPE2.3

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21235

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Input validation error

EUVDB-ID: #VU102741