Vulnerability in Pioneer Corporation Stellanova Aps-S301 Series
CVE-2026-21427
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (7.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Pioneer Corporation Stellanova Aps-S301 Series — versions all versions
- Pioneer Corporation Stellanova Limited Aps-S202j-Lm — versions all versions
- Pioneer Corporation Stellanova Lite Aps-S201jgl — versions all versions
- Pioneer Corporation Stellanova Lite Aps-S201jgr — versions all versions
- Pioneer Corporation Stellanova Lite Aps-S201jr — versions all versions
- Pioneer Corporation Stellanova Lite Aps-S201js — versions all versions
- Pioneer Corporation Usb Dac Amplifier Aps-Da101jgl — versions all versions
- Pioneer Corporation Usb Dac Amplifier Aps-Da101jgr — versions all versions
- Pioneer Corporation Usb Dac Amplifier Aps-Da101jr — versions all versions
- Pioneer Corporation Usb Dac Amplifier Aps-Da101js — versions all versions
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-21427?
- CVE-2026-21427 is a high-severity vulnerability in Pioneer Corporation Stellanova Aps-S301 Series, classified under Uncontrolled Search Path Element. CVSS score: 7.8/10. Published 2026-01-08.
- How severe is CVE-2026-21427?
- High severity. CVSS v3 base score is 7.8 out of 10.