How severe is CVE-2021-22682?

CVE-2021-22682 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-22682 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22682?

CVE-2021-22682 primarily affects Hornerautomation Cscape. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22682?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-22682 published?

CVE-2021-22682 was published on 2021-04-23 and last updated on 2026-06-17.

CVE-2021-22682

CVE-2021-22682 is a high-severity vulnerability in Hornerautomation Cscape with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Hornerautomation Cscape
Published: 2021-04-23
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2021-22682?: 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.
How severe is CVE-2021-22682?: CVE-2021-22682 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-22682 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22682?: CVE-2021-22682 primarily affects Hornerautomation Cscape. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22682?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-22682 published?: CVE-2021-22682 was published on 2021-04-23 and last updated on 2026-06-17.

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-112-01

Affected products (5)

cpe:2.3:a:hornerautomation:cscape:*:*:*:*:*:*:*:*
cpe:2.3:a:hornerautomation:cscape:9.90:-:*:*:*:*:*:*
cpe:2.3:a:hornerautomation:cscape:9.90:sp1:*:*:*:*:*:*
cpe:2.3:a:hornerautomation:cscape:9.90:sp2:*:*:*:*:*:*
cpe:2.3:a:hornerautomation:cscape:9.90:sp3:*:*:*:*:*:*

More vulnerabilities in Hornerautomation Cscape

CVE-2023-7206 — High (CVSS 7.8): In Horner Automation Cscape versions 9.90 SP10 and prior, local attackers are able to exploit this vulnerability if a…
CVE-2023-32203 — High (CVSS 7.8): Horner Automation Cscape lacks proper validation of user-supplied data when parsing project files (e.g., HMI). This…
CVE-2023-31278 — High (CVSS 7.8): Horner Automation Cscape lacks proper validation of user-supplied data when parsing project files (e.g., HMI). This…
CVE-2023-31244 — High (CVSS 7.8): The affected product does not properly validate user-supplied data. If a user opens a maliciously formed CSP file, then…
CVE-2023-29503 — High (CVSS 7.8): The affected application lacks proper validation of user-supplied data when parsing project files (e.g., CSP). This…
CVE-2023-28653 — High (CVSS 7.8): The affected application lacks proper validation of user-supplied data when parsing project files (e.g., CSP). This…

All CVEs affecting Hornerautomation Cscape →

Other CWE-284 (Improper Access Control) vulnerabilities

CVE-2026-50746 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi…
CVE-2026-46978 — Critical (CVSS 10.0): Vulnerability in the Oracle Solaris product of Oracle Systems (component: Remote Administration Daemon). The…
CVE-2026-35308 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Centralized Third Party Jars).…
CVE-2026-35307 — Critical (CVSS 10.0): Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that…
CVE-2026-46695 — Critical (CVSS 10.0): Boxlite is a sandbox service that allows users to create lightweight virtual machines (Boxes) and launch OCI containers…
CVE-2026-46840 — Critical (CVSS 10.0): Vulnerability in Oracle REST Data Services (component: Backend-as-a-Service). Supported versions that are affected are…

Browse all CWE-284 (Improper Access Control) vulnerabilities →