How severe is CVE-2020-10642?

CVE-2020-10642 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-2020-10642 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-10642?

CVE-2020-10642 affects Rockwellautomation Rslinx Classic. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-10642?

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-2020-10642 published?

CVE-2020-10642 was published on 2020-04-13 and last updated on 2026-06-17.

CVE-2020-10642

CVE-2020-10642 is a high-severity vulnerability in Rockwellautomation Rslinx Classic 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Rockwellautomation Rslinx Classic
Published: 2020-04-13
Last modified: 2026-06-17

Description

In Rockwell Automation RSLinx Classic versions 4.11.00 and prior, an authenticated local attacker could modify a registry key, which could lead to the execution of malicious code using system privileges when opening RSLinx Classic.

Frequently asked questions

What is CVE-2020-10642?: In Rockwell Automation RSLinx Classic versions 4.11.00 and prior, an authenticated local attacker could modify a registry key, which could lead to the execution of malicious code using system privileges when opening RSLinx Classic.
How severe is CVE-2020-10642?: CVE-2020-10642 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-2020-10642 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-10642?: CVE-2020-10642 affects Rockwellautomation Rslinx Classic. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-10642?: 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-2020-10642 published?: CVE-2020-10642 was published on 2020-04-13 and last updated on 2026-06-17.

References

https://www.us-cert.gov/ics/advisories/icsa-20-100-01

Affected products (1)

cpe:2.3:a:rockwellautomation:rslinx_classic:*:*:*:*:*:*:*:*

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