High 8.5Published Jan 7, 2026

CVE-2026-21427The 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.

Updated under an hour ago (Oct 27, 2026, 10:00 PM ET)

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It affects PIONEER CORPORATION USB DAC Amplifier APS-DA101JS and 9 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for PIONEER CORPORATION USB DAC Amplifier APS-DA101JS

Exploited in the last 30 days

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.

CVSS: 8.5 HIGH (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-427
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: jpcert
NVD analysis: Deferred
Record last updated: Jan 22, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

PIONEER CORPORATION USB DAC Amplifier APS-DA101JS pioneer:usb_dac_amplifier_aps_da101js (from the name)	all versions	CNA record
PIONEER CORPORATION USB DAC Amplifier APS-DA101JR pioneer:usb_dac_amplifier_aps_da101jr (from the name)	all versions	CNA record
PIONEER CORPORATION USB DAC Amplifier APS-DA101JGL pioneer:usb_dac_amplifier_aps_da101jgl (from the name)	all versions	CNA record
PIONEER CORPORATION USB DAC Amplifier APS-DA101JGR pioneer:usb_dac_amplifier_aps_da101jgr (from the name)	all versions	CNA record
PIONEER CORPORATION Stellanova Lite APS-S201JS pioneer:stellanova_lite_aps_s201js (from the name)	all versions	CNA record
PIONEER CORPORATION Stellanova Lite APS-S201JR pioneer:stellanova_lite_aps_s201jr (from the name)	all versions	CNA record
PIONEER CORPORATION Stellanova Lite APS-S201JGL pioneer:stellanova_lite_aps_s201jgl (from the name)	all versions	CNA record
PIONEER CORPORATION Stellanova Lite APS-S201JGR pioneer:stellanova_lite_aps_s201jgr (from the name)	all versions	CNA record
PIONEER CORPORATION Stellanova Limited APS-S202J-LM pioneer:stellanova_limited_aps_s202j_lm (from the name)	all versions	CNA record
PIONEER CORPORATION Stellanova APS-S301 series pioneer:stellanova_aps_s301_series (from the name)	all versions	CNA record

References

References

https://jpn.pioneer/ja/support/software/stellanova/dac_driver/
https://jvn.jp/en/jp/JVN17956874/

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.