CVE-2020-10642

highpriority · track · 31EPSS 0.004 · 38 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.45% (38th) EPSS

CVSS 7.2 · high

Is it mine?

5 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedRSLinxcisa_csaf_ot
For versions 3.60 to 4.11 Rockwell Automation recommends users apply patch 1091155. Affected users are encouraged to apply the most recent version of RSLinx Classic.
https://selinc.com/support/?categories.Customer%20Service
MitigationRSLinxcisa_csaf_ot
Please refer to Rockwell Automation's security advisory on their website.
https://rockwellautomation.custhelp.com/

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.08.8highCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · CISA US

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-732USCWE-732USCWE-732US

affected products (5)

Products and version ranges known to be affected.

RSLinx: Versions 4.11.00 and priorall versionscisa_csaf_otUS
Rockwell Automation RSLinx≤ 4.11.00cisa_csaf_otUS
n/a Rockwell Automation RSLinx Classic versions 4.1.00 and prior≤ Rockwell Automation RSLinx Classic versions 4.1.00 and priorenisa_euvdEU
Rockwell Automation Inc. RSLinx Classic≤ 4.11.00fstec_bduRU
rockwellautomation rslinx classic≤ 4.11.00nvdUScpe:2.3:a:rockwellautomation:rslinx_classic:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-20-100-01Rockwell Automation RSLinx Classic2020-04-09icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability could allow a local authenticated attacker to execute malicious code when opening RSLinx Classic.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd NVD CVE.org MITRE

published 2020-04-13modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

scry

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