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Fencer Vulns
high 7.8

CVE-2026-21427 json

The installers for multiple products provided by PIONEER CORPORATION contain an issue with the DLL search path, which may lead to insecurel…

published 2026-01-08 10 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-1590

cvss
7.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

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.

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
10 mo ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 4.0 8.5 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
CNA 4.0 8.5 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • PIONEER CORPORATION USB DAC Amplifier APS-DA101JS
  • PIONEER CORPORATION USB DAC Amplifier APS-DA101JR
  • PIONEER CORPORATION USB DAC Amplifier APS-DA101JGL
  • PIONEER CORPORATION USB DAC Amplifier APS-DA101JGR
  • PIONEER CORPORATION Stellanova Lite APS-S201JS
  • PIONEER CORPORATION Stellanova Lite APS-S201JR
  • PIONEER CORPORATION Stellanova Lite APS-S201JGL
  • PIONEER CORPORATION Stellanova Lite APS-S201JGR
  • PIONEER CORPORATION Stellanova Limited APS-S202J-LM
  • PIONEER CORPORATION Stellanova APS-S301 series

Classification

Weakness
  • CWE-427 Uncontrolled Search Path Element

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.