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8 vulnerabilities found for RSLinx Classic® by Rockwell Automation
CVE-2026-9625 (GCVE-0-2026-9625)
Vulnerability from nvd – Published: 2026-09-01 13:36 – Updated: 2026-09-01 15:47
VLAI
EPSS
VEX
Title
RSLinx Classic® - Multiple Vulnerabilities
Summary
A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet with an oversized embedded message request can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:47 UTC
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rockwell Automation | RSLinx Classic® |
Affected:
V4.50 and prior
cpe:2.3:a:rockwell_automation:rslinx_classic_:v4.50_and_prior:*:*:*:*:*:*:* |
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CVE-2026-9624 (GCVE-0-2026-9624)
Vulnerability from nvd – Published: 2026-09-01 13:35 – Updated: 2026-09-01 15:46
VLAI
EPSS
VEX
Title
RSLinx Classic® - Multiple Vulnerabilities
Summary
A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet can cause the RSLinx® Classic service to crash due to insufficient data length validation, requiring a restart of the service to recover.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:46 UTC
CWE
- CWE-191 - Integer underflow (wrap or wraparound)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rockwell Automation | RSLinx Classic® |
Affected:
V4.50 and prior
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CVE-2026-9622 (GCVE-0-2026-9622)
Vulnerability from nvd – Published: 2026-09-01 13:34 – Updated: 2026-09-01 15:46
VLAI
EPSS
VEX
Title
RSLinx Classic® - Multiple Vulnerabilities
Summary
A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet targeting the Forward Close service can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:46 UTC
CWE
- CWE-191 - Integer underflow (wrap or wraparound)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rockwell Automation | RSLinx Classic® |
Affected:
V4.50 and prior
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CVE-2026-9621 (GCVE-0-2026-9621)
Vulnerability from nvd – Published: 2026-09-01 13:33 – Updated: 2026-09-01 15:46
VLAI
EPSS
VEX
Title
RSLinx Classic® - Multiple Vulnerabilities
Summary
A denial-of-service security issue exists within RSLinx® Classic. The security issue stems from improper handling of a malformed packet. A crafted CIP packet can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:46 UTC
CWE
- CWE-190 - Integer overflow or wraparound
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rockwell Automation | RSLinx Classic® |
Affected:
V4.50 and prior
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CVE-2026-9625 (GCVE-0-2026-9625)
Vulnerability from cvelistv5 – Published: 2026-09-01 13:36 – Updated: 2026-09-01 15:47
VLAI
EPSS
VEX
Title
RSLinx Classic® - Multiple Vulnerabilities
Summary
A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet with an oversized embedded message request can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:47 UTC
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rockwell Automation | RSLinx Classic® |
Affected:
V4.50 and prior
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CVE-2026-9624 (GCVE-0-2026-9624)
Vulnerability from cvelistv5 – Published: 2026-09-01 13:35 – Updated: 2026-09-01 15:46
VLAI
EPSS
VEX
Title
RSLinx Classic® - Multiple Vulnerabilities
Summary
A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet can cause the RSLinx® Classic service to crash due to insufficient data length validation, requiring a restart of the service to recover.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:46 UTC
CWE
- CWE-191 - Integer underflow (wrap or wraparound)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rockwell Automation | RSLinx Classic® |
Affected:
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CVE-2026-9622 (GCVE-0-2026-9622)
Vulnerability from cvelistv5 – Published: 2026-09-01 13:34 – Updated: 2026-09-01 15:46
VLAI
EPSS
VEX
Title
RSLinx Classic® - Multiple Vulnerabilities
Summary
A denial-of-service security issue exists within RSLinx® Classic. A crafted CIP packet targeting the Forward Close service can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:46 UTC
CWE
- CWE-191 - Integer underflow (wrap or wraparound)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rockwell Automation | RSLinx Classic® |
Affected:
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CVE-2026-9621 (GCVE-0-2026-9621)
Vulnerability from cvelistv5 – Published: 2026-09-01 13:33 – Updated: 2026-09-01 15:46
VLAI
EPSS
VEX
Title
RSLinx Classic® - Multiple Vulnerabilities
Summary
A denial-of-service security issue exists within RSLinx® Classic. The security issue stems from improper handling of a malformed packet. A crafted CIP packet can cause the RSLinx® Classic service to crash, requiring a restart of the service to recover
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-01 15:46 UTC
CWE
- CWE-190 - Integer overflow or wraparound
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Rockwell Automation | RSLinx Classic® |
Affected:
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