CVE-2026-21427 Other in Stellanova APS-S301 series
Attackers can execute arbitrary code via DLL hijacking in Pioneer audio product installers, requiring user interaction to run the installer.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-21427?
CVE-2026-21427 is a high-severity vulnerability in PIONEER CORPORATION Stellanova APS-S301 series, published on 8 Jan 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
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.
Weakness: CWE-427
Which versions are affected by CVE-2026-21427?
How do I fix CVE-2026-21427?
No fix has been published for CVE-2026-21427 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-21427 being exploited?
There is no known exploitation of CVE-2026-21427 in the wild and no public exploit code.
Sources
Also known as GHSA-j8fw-422f-28h7.