CVE-2021-22742
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.
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 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Frequently Asked Questions
What systems are affected by CVE-2021-22742?
CVE-2021-22742 affects Triconex Model 3009 MP installed on Tricon V11.3.x systems.
What could CVE-2021-22742 potentially cause?
CVE-2021-22742 could cause a module reset when the TCM receives malformed TriStation packets.
How can I mitigate CVE-2021-22742?
To mitigate CVE-2021-22742, ensure that the write-protect keyswitch is not in the program position.
What is the severity level of CVE-2021-22742?
CVE-2021-22742 is classified as a high-severity vulnerability.
Which firmware versions are vulnerable to CVE-2021-22742?
Firmware versions between 11.3.0 and 11.8.0 for Triconex Model 3009 MP and versions between 11.3.0 and 11.5.1 for TCM 4351B are vulnerable to CVE-2021-22742.
- agent/softwarecombine
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/weakness
- agent/author
- agent/last-modified-date
- agent/severity
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- 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