CVE-2021-22699: Input Validation
First published: Wed May 26 2021(Updated: )
Improper Input Validation vulnerability exists in Modicon M241/M251 logic controllers firmware prior to V5.1.9.1 that could cause denial of service when specific crafted requests are sent to the controller over HTTP.
Credit: cybersecurity@se.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Schneider-electric Modicon M241 Firmware | <5.1.9.1 | |
| Schneider-electric Modicon M241 | ||
| Schneider-electric Modicon M251 Firmware | <5.1.9.1 | |
| Schneider-electric Modicon M251 |
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Frequently Asked Questions
What is the vulnerability ID of this security issue?
The vulnerability ID of this security issue is CVE-2021-22699.
What is the title of this security issue?
The title of this security issue is 'Improper Input Validation vulnerability exists in Modicon M241/M251 logic controllers firmware prior to V5.1.9.1'.
What is the severity of CVE-2021-22699?
The severity of CVE-2021-22699 is high with a severity value of 7.5.
Which software versions are affected by CVE-2021-22699?
Modicon M241/M251 logic controllers firmware versions prior to V5.1.9.1 are affected by CVE-2021-22699.
How does CVE-2021-22699 impact the affected software?
CVE-2021-22699 can cause denial of service when specific crafted requests are sent to the Modicon M241/M251 logic controllers firmware over HTTP.
Is Schneider-electric Modicon M241 vulnerable to CVE-2021-22699?
No, Schneider-electric Modicon M241 is not vulnerable to CVE-2021-22699.
Is Schneider-electric Modicon M251 vulnerable to CVE-2021-22699?
No, Schneider-electric Modicon M251 is not vulnerable to CVE-2021-22699.
How can I fix CVE-2021-22699?
To fix CVE-2021-22699, update the Modicon M241/M251 logic controllers firmware to version V5.1.9.1 or later.
Where can I find more information about CVE-2021-22699?
You can find more information about CVE-2021-22699 at the following reference: [Link](https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-05)
What is the Common Weakness Enumeration (CWE) ID associated with CVE-2021-22699?
The Common Weakness Enumeration (CWE) ID associated with CVE-2021-22699 is CWE-20.
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- agent/first-publish-date
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- agent/description
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- collector/mitre-cve
- source/MITRE
- vendor/schneider-electric
- canonical/schneider-electric modicon m241 firmware
- canonical/schneider-electric modicon m241
- canonical/schneider-electric modicon m251 firmware
- canonical/schneider-electric modicon m251