Weak authentication in MLSoft Inno Setup
Priority LOW 26CWE-1390Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Privilege escalation via dll hijacking in Inno Setup 6.2.1 and ealier versions.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0011 1st percentileScored 2026-11-07
Fix Fixed Inno Setup (mlsoft): 6.2.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| MLSoft | Inno Setup | up to 6.2.1 | 6.2.2 | Patch available | CNA |
- Inno Setup VendorMLSoft Affected up to 6.2.1 Fixed in 6.2.2 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:jrsoftware:inno_setup:*:*:*:*:*:*:*:* | up to 6.2.1 | Vulnerable | Jrsoftware |
- cpe:2.3:a:jrsoftware:inno_setup:*:*:*:*:*:*:*:* Versions up to 6.2.1 Vulnerable ·Jrsoftware
Remediation
- Fix · CNA Inno Setup (mlsoft) Fixed in 6.2.2
Timeline
- 2026-10-02 Threatist record created from CVE-2025-15595
- 2026-10-03 Alias added: GHSA-4rhw-3jx2-mpcf
References
More MLSoft vulnerabilities
- TI-2023-24561 MLSoft TCO!stream Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-15595 · CVE Program
- CVE-2025-15595 · NVD
- FIRST EPSS
- GHSA-4rhw-3jx2-mpcf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences