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CVE-2019-12803

29
FAUCET Score

CVE-2019-12803 is a critical vulnerability affecting Hunesion i-oneNet versions 3.0.7 through 3.0.53 and 4.0.4 through 4.0.16. It allows an unauthenticated attacker to upload arbitrary files, including webshells, due to insufficient file extension and type validation in a specific upload module. This flaw carries a CVSSv3.1 score of 9.8 (Critical), indicating that it is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While the vulnerability is severe, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0.7, <= 3.0.53CPE matchmatch criteria
cpe:2.3:a:hunesion:i-onenet:*:*:*:*:*:*:*:*
>= 4.0.4, <= 4.0.16CPE matchmatch criteria
cpe:2.3:a:hunesion:i-onenet:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.86%
Probability of exploitation in next 30 days
EPSS Percentile
77.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0186 is in the 65th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

boho.or.kr / krcert/secNoticeView.do
Broken LinkThird Party Advisory