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CVE-2023-46381

27
FAUCET Score

CVE-2023-46381 is a critical authentication bypass vulnerability affecting various LOYTEC LINX, LVIS, and LIOB devices across all versions. An unauthenticated attacker can exploit this flaw by accessing the preinstalled LWEB-802 via a specific URI, allowing them to modify existing projects or create new ones, thereby gaining control over the device's graphical user interface. This vulnerability carries a CVSS score of 8.2 (High), indicating a network-based attack with low complexity and high impact on integrity and low impact on availability. While there is no evidence of active exploitation, public exploit code, or Metasploit/Nuclei modules, the vulnerability has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
6.2.4CPE matchmatch criteria
cpe:2.3:o:loytec:linx-212_firmware:6.2.4:*:*:*:*:*:*:*
6.2.2CPE matchmatch criteria
cpe:2.3:o:loytec:lvis-3me12-a1_firmware:6.2.2:*:*:*:*:*:*:*
6.2.3CPE matchmatch criteria
cpe:2.3:o:loytec:liob-586_firmware:6.2.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.38%
Probability of exploitation in next 30 days
EPSS Percentile
93.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0738 is in the 90th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

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

seclists.org / fulldisclosure/2023/Nov/0
packetstormsecurity.com / files/175646/LOYTEC-Electronics-Insecure-Transit-Insecure-Permissions-Unauthenticated-Access.html
Third Party Advisory
seclists.org / fulldisclosure/2023/Nov/0
Mailing ListThird Party Advisory
cisa.gov / news-events/ics-advisories/icsa-24-247-01
txone.com / blog/ten-unpatched-vulnerabilities-in-building-automation-products-identified-by-txone-networks