CVE-2025-5555
HIGH EPSS 11.1%
Published Oct 18, 20258mo ago · Modified Jun 17, 20262w ago
7.1 CVSS 4.0
Published Oct 18, 2025 8mo ago
Last Modified Jun 17, 2026 2w ago
Description
A vulnerability has been found in Nixdorf Wincor PORT IO Driver up to 1.0.0.1. This affects the function sub_11100 in the library wnport.sys of the component IOCTL Handler. Such manipulation leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. Upgrading to version 3.0.0.1 is able to mitigate this issue. Upgrading the affected component is recommended. The vendor was contacted beforehand and was able to provide a patch very early.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
11.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-121
References 5
- b.iakb.org https://b.iakb.org/2025/06/26/Wincor-Nixdorf-PORT-IO-Driver-Buffer-Overflow/
- download.dieboldnixdorf.com https://download.dieboldnixdorf.com/
- vuldb.com https://vuldb.com/?ctiid.329013
- vuldb.com https://vuldb.com/?id.329013
- vuldb.com https://vuldb.com/?submit.604823
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.