VDB-336130 · CVE-2025-13670 · GCVE-0-2025-13670

Altera High Level Synthesis Compiler up to 24.3 on Windows uncontrolled search path

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Altera High Level Synthesis Compiler up to 24.3 on Windows and classified as problematic. This vulnerability affects unknown code. Executing a manipulation can lead to uncontrolled search path. This vulnerability is registered as CVE-2025-13670. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability was found in Altera High Level Synthesis Compiler up to 24.3 on Windows. It has been declared as critical. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a uncontrolled search path vulnerability. The CWE definition for the vulnerability is CWE-427. The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The High Level Synthesis Compiler i++ command for Windows is vulnerable to a DLL planting vulnerability

The advisory is available at altera.com. This vulnerability was named CVE-2025-13670 since 11/25/2025. The exploitation appears to be difficult. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 12/12/2025). This vulnerability is assigned to T1574 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Altera

Name

High Level Synthesis Compiler

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.0
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.7
CNA Vector (Altera): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Uncontrolled search path
CWE: CWE-427 / CWE-426
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/25/2025 CVE reserved
12/12/2025 +17 days Advisory disclosed
12/12/2025 +0 days VulDB entry created
12/12/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: altera.com
Status: Confirmed

CVE: CVE-2025-13670 (🔒)
GCVE (CVE): GCVE-0-2025-13670
GCVE (VulDB): GCVE-100-336130

Entryinfo

Created: 12/12/2025 07:36
Changes: 12/12/2025 07:36 (74)
Complete: 🔍
Cache ID: 216::103