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CVE-2021-39280

28
FAUCET Score

CVE-2021-39280 describes a critical vulnerability in several Korenix JetWave industrial networking devices, including specific versions of the 2212X, 2212S, 2212G, 3220 V3, 3420 V3, and 2311 series. This flaw allows an authenticated attacker to execute arbitrary code with root privileges via the /syscmd.asp endpoint. With a CVSS score of 8.8 (High), the vulnerability is easily exploitable over the network with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. Currently, there is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.9.1CPE matchmatch criteria
cpe:2.3:o:korenix:jetwave_2212s_firmware:*:*:*:*:*:*:*:*
< 1.8CPE matchmatch criteria
cpe:2.3:o:korenix:jetwave_2212g_firmware:*:*:*:*:*:*:*:*
<= 1.2CPE matchmatch criteria
cpe:2.3:o:korenix:jetwave_2311_firmware:*:*:*:*:*:*:*:*
< 1.5.1CPE matchmatch criteria
cpe:2.3:o:korenix:jetwave_3220_firmware:*:*:*:*:*:*:*:*
< 1.5.1CPE matchmatch criteria
cpe:2.3:o:korenix:jetwave_3420_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.31%
Probability of exploitation in next 30 days
EPSS Percentile
81.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0231 is in the 80th percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/165875/Korenix-Technology-JetWave-CSRF-Command-Injection-Missing-Authentication.html
Third Party AdvisoryVDB Entry
korenix.com / en/product/search.aspx
ProductVendor Advisory