CVE-2021-22699
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 1.0%
exploitation probability
1.0%top 39% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
n/a · Modicon M241/M251 logic controllers firmware prior to V5.1.9.1