CVE-2023-0621

published 2023-03-09 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-12655

cvss: 7.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits: 0; none known

Cscape Envision RV version 4.60 is vulnerable to an out-of-bounds read vulnerability when parsing project (i.e. HMI) files. The product lacks proper validation of user-supplied data, which could result in reads past the end of allocated data structures. An attacker could leverage these vulnerabilities to execute arbitrary code in the context of the current process.

Vendor advisories

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

cisa ICSA-23-040-04 updated 2023-02-09 cvss 7.8

Horner Automation Cscape Envision RV

Horner Automation Cscape Envision RV 4.6
affected: mitigation “Horner Automation fixed these vulnerabilities in Version 4.70, and recommends all users update affected devices to the latest versions.” hornerautomation.com

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: no
Technical impact: total
Assessed: 21 mo ago (2025-01-17)

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Horner Automation Cscape Envision RV

Classification

Weakness

CWE-125 Out-of-bounds Read

References

cisa.gov /news-events/ics-advisories/icsa-23-040-04
third-party-advisory, us-government-resource

Sources

CVE List CVE-2023-0621
NVD CVE-2023-0621

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