Vulnerability · Published Jan 8, 2026 · Assigned by jpcert
CVE-2026-21427
High 7.8
In plain English
A high-severity uncontrolled search path in Stellanova APS-S301 series from PIONEER CORPORATION. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.0)7.8High
Exploit odds (30 days)0.2%top 92.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The installers for multiple products provided by PIONEER CORPORATION contain an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries. As a result, arbitrary code may be executed with the privileges of the running installer.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| PIONEER CORPORATION | USB DAC Amplifier APS-DA101JS | all versions |
| PIONEER CORPORATION | USB DAC Amplifier APS-DA101JR | all versions |
| PIONEER CORPORATION | USB DAC Amplifier APS-DA101JGL | all versions |
| PIONEER CORPORATION | USB DAC Amplifier APS-DA101JGR | all versions |
| PIONEER CORPORATION | Stellanova Lite APS-S201JS | all versions |
| PIONEER CORPORATION | Stellanova Lite APS-S201JR | all versions |
| PIONEER CORPORATION | Stellanova Lite APS-S201JGL | all versions |
| PIONEER CORPORATION | Stellanova Lite APS-S201JGR | all versions |
| PIONEER CORPORATION | Stellanova Limited APS-S202J-LM | all versions |
| PIONEER CORPORATION | Stellanova APS-S301 series | all versions |
Weakness: CWE-427 · Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H