Vulnerability · Published Dec 12, 2025 · Assigned by Altera
CVE-2025-13670High Level Synthesis Compiler Security Advisory
Medium 6.7
In plain English
A medium-severity uncontrolled search path in High Level Synthesis Compiler from Altera. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
Severity (CVSS 3.1)6.7Medium
Exploit odds (30 days)0.1%top 98.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The High Level Synthesis Compiler i++ command for Windows is vulnerable to a DLL planting vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Altera | High Level Synthesis Compiler | 19.1 – through 24.3 |
Weakness: CWE-427 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H