Is CVE-2021-39280 actively exploited?

No active exploitation of CVE-2021-39280 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-39280 be exploited remotely?

Yes. CVE-2021-39280 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-39280?

CVE-2021-39280 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2021-39280

NVD-CWE-noinfoPublished: February 6, 2022· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2021-39280 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.Low

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

korenix12 product(s)

jetwave 2212s firmwarejetwave 2212sjetwave 2212g firmwarejetwave 2212gjetwave 2311 firmwarejetwave 2311jetwave 3220 firmwarejetwave 3220jetwave 3420 firmwarejetwave 3420jetwave 2212x firmwarejetwave 2212x

Source: NVD CPE · 12 total CPE entries