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CVE-2021-22699

Published: May 26, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-20
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.0%
Top 42.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-20

Affected Products

Modicon M241/M251 logic controllers firmware prior to V5.1.9.1n/a
modicon m241 firmwareschneider-electricICS / OT / IoT
modicon m251 firmwareschneider-electricICS / OT / IoT
schneider-electriccommercialFRICS / OT / IoTaka schneider electric se

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
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References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-130-05
download.schneider-electric.com

Timeline

Published
May 26, 2021
Last Updated
Nov 21, 2024

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