CVE-2025-13670
High Level Synthesis Compiler Security Advisory
The High Level Synthesis Compiler i++ command for Windows is vulnerable to a DLL planting vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- Active
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
High Level Synthesis Compiler Security Advisory
The High Level Synthesis Compiler i++ command for Windows is vulnerable to a DLL planting vulnerability
- Record
CVE-2025-13670- CVSS 4.0
- 5.4 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-427
- Updated
- 2026-11-02
EUVDEUVD-2025-202941
The High Level Synthesis Compiler i++ command for Windows is vulnerable to a DLL planting vulnerability
- Record
EUVD-2025-202941- CVSS 4.0
- 5.4 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-p268-fqx2-j4vp
The High Level Synthesis Compiler i++ command for Windows is vulnerable to a DLL planting...
The High Level Synthesis Compiler i++ command for Windows is vulnerable to a DLL planting vulnerability
- Record
GHSA-p268-fqx2-j4vp- CVSS 4.0
- 5.4 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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 - CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-427
- Updated
- 2026-11-02
NVD
The High Level Synthesis Compiler i++ command for Windows is vulnerable to a DLL planting vulnerability
- Record
CVE-2025-13670- CVSS 4.0
- 5.4 Medium
CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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 - CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-427
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-13670 is a medium vulnerability (CVSS 5.4) in Altera High Level Synthesis Compiler, published December 12, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 1st percentile. No source names a fixed version.