CVE-2021-22747
First published: Wed May 26 2021(Updated: )
Improper Check for Unusual or Exceptional Conditions vulnerability exists in Triconex Model 3009 MP installed on Tricon V11.3.x systems that could cause module reset when TCM receives malformed TriStation packets while the write-protect keyswitch is in the program position. This CVE ID is unique from CVE-2021-22742, CVE-2021-22744, CVE-2021-22745, and CVE-2021-22746.
Credit: cybersecurity@se.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Schneider Electric Triconex Model 3009 MP | >=11.3.0<11.8.0 | |
| Schneider Electric Triconex Model 3009 MP | ||
| Schneider-electric Tricon Tcm 4351b Firmware | >=11.3.0<11.5.1 | |
| Schneider-electric Tricon Tcm 4351b Firmware | =11.7.0 | |
| Schneider-electric Tricon Tcm 4351b Firmware |
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Frequently Asked Questions
What is the severity of CVE-2021-22747?
CVE-2021-22747 has a medium severity rating due to potential disruption of service.
How do I fix CVE-2021-22747?
To fix CVE-2021-22747, upgrade the Triconex Model 3009 MP firmware to a version above 11.8.0.
Which systems are affected by CVE-2021-22747?
CVE-2021-22747 affects Triconex Model 3009 MP systems running firmware versions between 11.3.0 and 11.8.0.
What happens if CVE-2021-22747 is exploited?
Exploitation of CVE-2021-22747 can lead to a module reset when malformed TriStation packets are received.
Is CVE-2021-22747 present in older firmware versions?
Yes, CVE-2021-22747 is present in Triconex firmware versions from 11.3.0 up to 11.8.0.
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- agent/softwarecombine
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- source/MITRE
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- agent/author
- agent/last-modified-date
- agent/severity
- agent/description
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- agent/event
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- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/schneider-electric
- canonical/schneider electric triconex model 3009 mp
- version/schneider electric triconex model 3009 mp/11.3.0
- canonical/schneider-electric tricon tcm 4351b firmware
- version/schneider-electric tricon tcm 4351b firmware/11.3.0
- version/schneider-electric tricon tcm 4351b firmware/11.7.0