CVE-2025-15595 PUBLISHED

Privilege escalation via dll hijacking in Inno Setup

Assigner: NCSC-FI
Reserved: 27.02.2026 Published: 03.03.2026 Updated: 03.03.2026

Privilege escalation via dll hijacking in Inno Setup 6.2.1 and ealier versions.

CVSS Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H/E:U/AU:N/U:Clear
CVSS Score: 5.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	High	Confidentiality	High
Attack Complexity	High	Integrity	High	Integrity	High
Attack Requirements	Present	Availability	None	Availability	High
Privileges Required	Low
User Interaction	None

CVSS 4.0

Vendor	mlsoft
Product	Inno Setup
Versions	Default: unaffected affected from 0 to 6.2.1 (incl.) Version 6.2.2 is unaffected

Update to 6.2.2 or later