CVE-2021-34593
CVSS v3
7.5
HIGH
EPSS Score
1.6 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing the PLC.
Technical details
- Published
- 2021-10-26
Frequently asked questions
What is CVE-2021-34593?
In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid requests may result in several denial-of-service conditions. Running PLC programs may be stopped, memory may be leaked, or further communication clients may be blocked from accessing the PLC.
Is CVE-2021-34593 actively exploited?
Active exploitation of CVE-2021-34593 has not been confirmed. The EPSS score is 1.6%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-34593?
CVE-2021-34593 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-34593 affecting your environment?
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