CVE-2023-22803

published 2023-02-15 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-26915

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits: 0; none known

LS ELECTRIC XBC-DN32U with operating system version 01.80 is missing authentication to perform critical functions to the PLC. This could allow an attacker to change the PLC's mode arbitrarily.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-040-02 updated 2023-02-09 cvss 7.5

LS ELECTRIC XBC-DN32U

LS ELECTRIC, LS Industrial Systems (LSIS) Co. Ltd- XBC-DN32U 1.8
affected: mitigation “Restrict communication to the PLC to only trusted IP addresses and trusted devices by enabling the “Host Table” option in the configuration window of the PLC.”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 21 mo ago (2025-01-16)

Exploit prediction

0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

LS Electric XBC-DN32U

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality

References

cisa.gov /uscert/ics/advisories/icsa-23-040-02
third-party-advisory, us-government-resource

Sources

CVE List CVE-2023-22803
NVD CVE-2023-22803

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.

Summary