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Fencer Vulns
high 8.8

CVE-2021-39280 json

Certain Korenix JetWave devices allow authenticated users to execute arbitrary code as root via /syscmd.asp.

published 2022-02-06 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-25642

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

Certain Korenix JetWave devices allow authenticated users to execute arbitrary code as root via /syscmd.asp. This affects 2212X before 1.9.1, 2212S before 1.9.1, 2212G before 1.8, 3220 V3 before 1.5.1, 3420 V3 before 1.5.1, and 2311 through 2022-01-31.

Patch / fix

  • korenix jetwave_2212s_firmware 1.9.1
  • korenix jetwave_2212g_firmware 1.8
  • korenix jetwave_3220_firmware 1.5.1
  • korenix jetwave_3420_firmware 1.5.1
  • korenix jetwave_2212x_firmware 1.9.1

Exploit prediction

2.31% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C

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.