Cscape (All versions prior to 9.90 SP4) is configured by default to be installed for all users, which allows full permissions, including re…

published 2021-04-23 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-9818

cvss: 7.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits: 0; none known

Cscape (All versions prior to 9.90 SP4) is configured by default to be installed for all users, which allows full permissions, including read/write access. This may allow unprivileged users to modify the binaries and configuration files and lead to local privilege escalation.

Patch / fix

fixed in 1

hornerautomation cscape 9.90

Vendor advisories

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

cisa ICSA-21-112-01 updated 2021-04-22 cvss 8.4

Horner Automation Cscape

Horner Automation Cscape < 9.90 SP4
affected: vendor fix

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

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	4.6	AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

n/a Cscape

Classification

Weakness

CWE-284 Improper Access Control

References

us-cert.cisa.gov /ics/advisories/icsa-21-112-01
third-party-advisory, us-government-resource

Sources

CVE List CVE-2021-22682
NVD CVE-2021-22682

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